Naphthalene

Modify Date: 2026-07-01 16:34:19

Naphthalene structure	Common Name	Naphthalene
	CAS Number	91-20-3	Molecular Weight	128.171
	Density	1.0±0.1 g/cm3	Boiling Point	221.5±7.0 °C at 760 mmHg
	Molecular Formula	C₁₀H₈	Melting Point	80-82 °C(lit.)
	MSDS	Chinese USA	Flash Point	78.9±0.0 °C
	Symbol	GHS02, GHS07, GHS08, GHS09	Signal Word	Warning

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name	naphthalene
Synonym	More Synonyms

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density	1.0±0.1 g/cm3
Boiling Point	221.5±7.0 °C at 760 mmHg
Melting Point	80-82 °C(lit.)
Molecular Formula	C₁₀H₈
Molecular Weight	128.171
Flash Point	78.9±0.0 °C
Exact Mass	128.062607
LogP	3.45
Vapour density	4.4 (vs air)
Vapour Pressure	0.2±0.2 mmHg at 25°C
Index of Refraction	1.632
InChIKey	UFWIBTONFRDIAS-UHFFFAOYSA-N
SMILES	c1ccc2ccccc2c1
Water Solubility	30 mg/L (25 ºC)

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

Naphthalene MSDS(Chinese)

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QJ0525000

CHEMICAL NAME :: Naphthalene

CAS REGISTRY NUMBER :: 91-20-3

LAST UPDATED :: 199801

DATA ITEMS CITED :: 73

MOLECULAR FORMULA :: C10-H8

MOLECULAR WEIGHT :: 128.18

WISWESSER LINE NOTATION :: L66J

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Open irritation test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - child

DOSE/DURATION :: 100 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Human

DOSE/DURATION :: 29 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 74 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 490 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >340 mg/m3/1H

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - somnolence (general depressed activity)

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >2500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 533 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - ptosis Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 150 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 969 mg/kg

TOXIC EFFECTS :: Behavioral - tremor

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 100 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 400 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - cat

DOSE/DURATION :: 1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 3 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >20 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 1200 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - changes in motor activity (specific assay)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10 gm/kg/10D-I

TOXIC EFFECTS :: Liver - other changes Liver - changes in liver weight Biochemical - Metabolism (Intermediary) - lipids including transport

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1680 mg/kg/28D-C

TOXIC EFFECTS :: Endocrine - changes in adrenal weight

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 12450 mg/kg/9W-I

TOXIC EFFECTS :: Liver - other changes Nutritional and Gross Metabolic - weight loss or decreased weight gain Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other oxidoreductases

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3738 mg/kg/14D-C

TOXIC EFFECTS :: Blood - changes in spleen Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 11970 mg/kg/90D-C

TOXIC EFFECTS :: Blood - changes in spleen

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3500 mg/kg/12W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - lymphoma, including Hodgkin's disease Reproductive - Tumorigenic effects - uterine tumors

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 30 ppm/6H/2Y-I

TOXIC EFFECTS :: Tumorigenic - neoplastic by RTECS criteria Lungs, Thorax, or Respiration - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 4500 mg/kg

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - other developmental abnormalities

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 5925 mg/kg

SEX/DURATION :: female 1-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Specific Developmental Abnormalities - cardiovascular (circulatory) system

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 2400 mg/kg

SEX/DURATION :: female 7-14 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Newborn - live birth index (measured after birth) Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4 per # born alive)

TYPE OF TEST :: Specific locus test

MUTATION DATA

TYPE OF TEST :: Sister chromatid exchange

TEST SYSTEM :: Rodent - hamster Ovary

REFERENCE :: NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-410,1992 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-STEL 79 mg/m3 (15 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-TWA 52 mg/m3 (10 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW CRTXB2 CRC Critical Reviews in Toxicology. (CRC Press, Inc., 2000 Corporate Blvd., NW, Boca Raton, FL 33431) V.1- 1971- Volume(issue)/page/year: 1(1),93,1971 TOXICOLOGY REVIEW JOPDAB Journal of Pediatrics. (C.V. Mosby Co., 11830 Westline Industrial Dr., St. Louis, MO 63141) V.1- 1932- Volume(issue)/page/year: 59,1,1961 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 MSHA STANDARD-air:TWA 10 ppm (50 mg/m3) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,177,1971 OSHA PEL (Gen Indu):8H TWA 10 ppm (50 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 10 ppm (50 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 10 ppm (50 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 10 ppm (50 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-AUSTRALIA:TWA 10 ppm (50 mg/m3);STEL 15 ppm (75 mg/m3) JAN 1993 OEL-BELGIUM:TWA 10 ppm (52 mg/m3);STEL 15 ppm (79 mg/m3) JAN 1993 OEL-DENMARK:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-FINLAND:TWA 10 ppm (50 mg/m3);STEL 20 ppm (100 mg/m3) JAN 1993 OEL-FRANCE:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-GERMANY:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-HUNGARY:TWA 40 mg/m3;STEL 80 mg/m3;Skin JAN 1993 OEL-THE NETHERLANDS:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-THE PHILIPPINES:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-POLAND:TWA 20 mg/m3 JAN 1993 OEL-RUSSIA:STEL 20 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 10 ppm (50 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 10 ppm (50 mg/m3);STEL 15 ppm (75 mg/m3) JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO NAPHTHALENE-air:10H TWA 10 ppm;STEL 15 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 49600 No. of Facilities: 4341 (estimated) No. of Industries: 71 No. of Occupations: 68 No. of Employees: 44297 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 49600 No. of Facilities: 7209 (estimated) No. of Industries: 83 No. of Occupations: 87 No. of Employees: 112696 (estimated) No. of Female Employees: 5220 (estimated)

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol	GHS02, GHS07, GHS08, GHS09
Signal Word	Warning
Hazard Statements	H228-H302-H351-H410
Precautionary Statements	P210-P280-P301 + P312 + P330-P370 + P378
Personal Protective Equipment	Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes	Xn:Harmful;N:Dangerousfortheenvironment;
Risk Phrases	R22;R40;R50/53
Safety Phrases	S36/37-S46-S60-S61-S62-S45-S16-S7
RIDADR	UN 1334 4.1/PG 3
WGK Germany	3
RTECS	QJ0525000
Packaging Group	III
Hazard Class	4.1
HS Code	2707400000

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor 0
DownStream 8
CAS#:107574-57-2 2-methyl-1-naph... CAS#:61838-78-6 2-methyl-1-naph... CAS#:1085-97-8 trimethyl-(4-tr... CAS#:1085-99-0 Naphthalene,1,2...
CAS#:17085-91-5 Naphthalene,1-(... CAS#:10565-10-3 1,4-Di-tert-but... CAS#:2876-35-9 Naphthalene,2-(... CAS#:605-70-9 1,4-Naphthalene...

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code	2902902000
Summary	2902902000 naphthalene。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:2.0%。general tariff:35.0%

This table lists relevant public references with title, journal and publication metadata for this compound.

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Electrochemical polymerization of pyrene derivatives on functionalized carbon nanotubes for pseudocapacitive electrodes.

Nat. Commun. 6 , 7040, (2015)

Electrochemical energy-storage devices have the potential to be clean and efficient, but their current cost and performance limit their use in numerous transportation and stationary applications. Many...

Layered titanium diboride: towards exfoliation and electrochemical applications.

Nanoscale 7 , 12527-34, (2015)

Layered transition metal diborides (TMDB), amongst other refractory metal borides, are commonly employed for material fabrication such as wear- and corrosion-resistant coatings due to their impressive...

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Albocarbon

EINECS 202-049-5

NAPHTHALENE BALLS 3/4 INCH DIAMETER

Naphthene

Tar camphor

0PHTHALENE CRUDE

Naphthalene, Recrystallized, Reagent

Camphor tar

Melting point standard 79-81C

Moth flakes

Naphthalene, , scintillation grade

NAPHTALENE

NAPHTHALENE, REFINED

Moth balls

Naphthalene

NAPTHALENE (HIGH PURITY)

White tar

NAPHTHALENE FOR SYNTHESIS

REFINED NAPHTHALENE

Naphthaline

NAPHTHALENE, SCINTILLATION GRADE

MIXED DIMETHYLNAPHTHALENE DISTILLATE

MFCD00001742

Naphthalin

NAPHTHALENE, MOLTEN

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the melting point of naphthalene?

A: Melting point of naphthalene is 80-82 °C(lit.).

Q: What is the LogP of naphthalene?

A: LogP of naphthalene is 3.45.

Q: What is the InChIKey of naphthalene?

A: InChIKey of naphthalene is UFWIBTONFRDIAS-UHFFFAOYSA-N.

Q: How is the water solubility of naphthalene?

A: Water solubility of naphthalene: 30 mg/L (25 ºC).

Q: What is the SMILES notation of naphthalene?

A: SMILES notation of naphthalene is c1ccc2ccccc2c1.

Q: What is the safety information for naphthalene?

A: Safety information for naphthalene: S36/37-S46-S60-S61-S62-S45-S16-S7.

Q: What are the downstream products of naphthalene?

A: Related downstream products(CAS) of naphthalene: 107574-57-2;61838-78-6;1085-97-8;1085-99-0;17085-91-5;10565-10-3;2876-35-9;605-70-9.

Q: What is the boiling point of naphthalene?

A: Boiling point of naphthalene is 221.5±7.0 °C at 760 mmHg.

Q: What is the molecular weight of naphthalene?

A: Molecular weight of naphthalene is 128.171.

Q: What is the English name of naphthalene?

A: The English name of naphthalene is naphthalene.

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd

Dayang Chem (Hangzhou) Co., Ltd.

Henan Tianfu Chemical Co., Ltd.

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.

Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Naphthalene
Price: Check
Purity: 99.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Naphthalene
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Naphthalene
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Get all suppliers and price by the below link:

Naphthalene suppliers

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Naphthalene

Names

Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

Safety Information

Precursor & DownStream

Customs

Articles148

Synonyms

Naphthalene | FAQ

Naphthalenefactory

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.