2-Methylnaphthalene

Modify Date: 2026-07-01 11:07:05

2-Methylnaphthalene structure	Common Name	2-Methylnaphthalene
	CAS Number	91-57-6	Molecular Weight	142.197
	Density	1.0±0.1 g/cm3	Boiling Point	239.9±3.0 °C at 760 mmHg
	Molecular Formula	C₁₁H₁₀	Melting Point	34-36 °C(lit.)
	MSDS	Chinese USA	Flash Point	97.8±0.0 °C
	Symbol	GHS02, GHS06, GHS08	Signal Word	Danger

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

Name	2-methylnaphthalene
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	239.9±3.0 °C at 760 mmHg
Melting Point	34-36 °C(lit.)
Molecular Formula	C₁₁H₁₀
Molecular Weight	142.197
Flash Point	97.8±0.0 °C
Exact Mass	142.078247
LogP	3.91
Vapour Pressure	0.1±0.2 mmHg at 25°C
Index of Refraction	1.617
InChIKey	QIMMUPPBPVKWKM-UHFFFAOYSA-N
SMILES	Cc1ccc2ccccc2c1
Stability	Stable. Incompatible with strong oxidizing agents.
Water Solubility	0.00246 g/100 mL
Freezing Point	34.5℃

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

2-Methylnaphthalene MSDS(Chinese)

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

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QJ9635000

CHEMICAL NAME :: Naphthalene, 2-methyl-

CAS REGISTRY NUMBER :: 91-57-6

LAST UPDATED :: 199801

DATA ITEMS CITED :: 11

MOLECULAR FORMULA :: C11-H10

MOLECULAR WEIGHT :: 142.21

WISWESSER LINE NOTATION :: L66J C1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1630 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 :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1 gm/kg

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - structural or functional change in trachea or bronchi Lungs, Thorax, or Respiration - other changes

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 28500 mg/kg/81W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Lungs, Thorax, or Respiration - tumors

MUTATION DATA

TYPE OF TEST :: Sister chromatid exchange

TEST SYSTEM :: Human Lymphocyte

DOSE/DURATION :: 250 umol/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 208,155,1988 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-RUSSIA:STEL 20 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M1659 No. of Facilities: 633 (estimated) No. of Industries: 10 No. of Occupations: 15 No. of Employees: 3498 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M1659 No. of Facilities: 376 (estimated) No. of Industries: 5 No. of Occupations: 5 No. of Employees: 4359 (estimated) No. of Female Employees: 1608 (estimated)

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

Symbol	GHS02, GHS06, GHS08
Signal Word	Danger
Hazard Statements	H225-H301 + H311 + H331-H370
Precautionary Statements	P210-P260-P280-P301 + P310-P311
Personal Protective Equipment	Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	Xn:Harmful;N:Dangerousfortheenvironment;
Risk Phrases	R22;R51/53
Safety Phrases	S26-S37/39-S61-S36/37-S24/25-S23-S53
RIDADR	UN 3077 9/PG 3
WGK Germany	2
RTECS	QJ9635000
Packaging Group	III
Hazard Class	9
HS Code	29029080

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

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

Precursor 10
CAS#:90-11-9 1-Bromonaphthalene CAS#:917-54-4 METHYLLITHIUM CAS#:1592-38-7 2-Naphthaleneme... CAS#:201230-82-2 carbon monoxide
CAS#:114078-26-1 3-(2-phenylethe... CAS#:66-99-9 2-Naphthaldehyde CAS#:939-26-4 2-(brommethyl)n... CAS#:18081-08-8 (2-Naphtyloxy)t...
CAS#:75-16-1 METHYLMAGNESIUM... CAS#:2586-62-1 1-Bromo-2-methy...
DownStream 10
CAS#:10546-24-4 2-Naphthalenami... CAS#:108011-98-9 4-(6-methylnapt... CAS#:110876-52-3 2-Methyl-1,2'-d... CAS#:4316-23-8 4-Methylphthali...
CAS#:528-44-9 Trimellitic acid CAS#:66-99-9 2-Naphthaldehyde CAS#:88-99-3 Phthalic acid CAS#:65-85-0 benzoic acid
CAS#:93-09-4 2-Naphthoic acid CAS#:35699-44-6 2-METHYL-1-NAPH...

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

HS Code	29029080

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

QSPR modeling of octanol/water partition coefficient for vitamins by optimal descriptors calculated with SMILES.

Eur. J. Med. Chem. 43 , 714-40, (2008)

Simplified molecular input line entry system (SMILES) has been utilized in constructing quantitative structure-property relationships (QSPR) for octanol/water partition coefficient of vitamins and org...

Quantitative structure-activity relationship analysis of inhibitors of the nicotine metabolizing CYP2A6 enzyme.

J. Med. Chem. 48 , 440-9, (2005)

The purpose of this study was to develop screening and in silico modeling methods to obtain accurate information on the active center of CYP2A6, a nicotine oxidizing enzyme. The inhibitory potencies o...

Exploring QSAR and QAAR for inhibitors of cytochrome P450 2A6 and 2A5 enzymes using GFA and G/PLS techniques

Eur. J. Med. Chem. 44 , 1941-51, (2009)

A series of naphthalene and non-naphthalene derivatives ( n = 42) having cytochrome P450 2A6 and 2A5 inhibitory activities, reported by Rahnasto et al., were subjected to QSAR and QAAR studies. The an...

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

2-METHYL NAPHTHALENE

beta-Methylnaphthalene

2-methyl-1-naphtoic acid

2-Methylnaphthalen-1-carbonsaeure

2-methyl-naphthalene

B-METHYLNAPHTHALENE

EINECS 202-078-3

L66J B1

2-methyl-1-naphthoic acid

2-metylnaphtalene

2-METHYLNAPHTHALENE FOR SYNTHESIS

2-Methylnaphthalen

2-Methylnaphthalene

2-methyl-1-naphthalenecarboxylic acid

2-methylnaphtalene

2-methylnaphthoic acid

MFCD00004118

2-METHYLNAPTHALENE

β-Methylnaphthalene

SS-METHYLNAPHTHALENE

Fasudil Impurity 13

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 2-methylnaphthalene?

A: Melting point of 2-methylnaphthalene is 34-36 °C(lit.).

Q: What is the CAS number of 2-methylnaphthalene?

A: CAS number of 2-methylnaphthalene is 91-57-6.

Q: What are the upstream materials of 2-methylnaphthalene?

A: Related upstream materials(CAS) of 2-methylnaphthalene: 90-11-9;917-54-4;1592-38-7;201230-82-2;114078-26-1;66-99-9;939-26-4;18081-08-8;75-16-1;2586-62-1.

Q: What is the InChIKey of 2-methylnaphthalene?

A: InChIKey of 2-methylnaphthalene is QIMMUPPBPVKWKM-UHFFFAOYSA-N.

Q: How is the water solubility of 2-methylnaphthalene?

A: Water solubility of 2-methylnaphthalene: 0.00246 g/100 mL.

Q: What is the LogP of 2-methylnaphthalene?

A: LogP of 2-methylnaphthalene is 3.91.

Q: What is the boiling point of 2-methylnaphthalene?

A: Boiling point of 2-methylnaphthalene is 239.9±3.0 °C at 760 mmHg.

Q: What is the molecular weight of 2-methylnaphthalene?

A: Molecular weight of 2-methylnaphthalene is 142.197.

Q: What are the downstream products of 2-methylnaphthalene?

A: Related downstream products(CAS) of 2-methylnaphthalene: 10546-24-4;108011-98-9;110876-52-3;4316-23-8;528-44-9;66-99-9;88-99-3;65-85-0;93-09-4;35699-44-6.

Q: What is the molecular formula of 2-methylnaphthalene?

A: Molecular formula of 2-methylnaphthalene is C11H10.

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: 2-Methylnaphthalene
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Methylnaphthalene
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: 2-Methylnaphthalene
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

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2-Methylnaphthalene

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MSDS

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CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

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2-Methylnaphthalene | FAQ

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