2-Naphthol

Modify Date: 2025-08-20 19:01:54

2-Naphthol structure	Common Name	2-Naphthol
	CAS Number	135-19-3	Molecular Weight	144.170
	Density	1.2±0.1 g/cm3	Boiling Point	285.5±0.0 °C at 760 mmHg
	Molecular Formula	C₁₀H₈O	Melting Point	120-122 °C(lit.)
	MSDS	Chinese USA	Flash Point	144.0±10.6 °C
	Symbol	GHS07, GHS09	Signal Word	Warning

Use of 2-Naphthol

2-Naphthol is a metabolite of naphthalene, catalyzed by cytochrome P450 (CYP) isozymes (CYP 1A1, CYP 1A2, CYP 2A1, CYP 2E1 and CYP 2F2).

Name	2-naphthol
Synonym	More Synonyms

Description	2-Naphthol is a metabolite of naphthalene, catalyzed by cytochrome P450 (CYP) isozymes (CYP 1A1, CYP 1A2, CYP 2A1, CYP 2E1 and CYP 2F2).
Related Catalog	Research Areas >> Others Natural Products >> Phenols
Target	Human Endogenous Metabolite
In Vitro	2-Naphthol is a metabolite of naphthalene, catalyzed by cytochrome P450 (CYP) isozymes (CYP 1A1, CYP 1A2, CYP 2A1, CYP 2E1 and CYP 2F2). 2-Naphthol (10, 25, 50 and 100 μM) causes no cytotoxic effect and the inhibition of peripheral-blood mononuclear cells proliferation[1].
References	[1]. Kapuci M, et al. Determination of cytotoxic and genotoxic effects of naphthalene, 1-naphthol and 2-naphthol on human lymphocyte culture. Toxicol Ind Health. 2014 Feb;30(1):82-9.

Density	1.2±0.1 g/cm3
Boiling Point	285.5±0.0 °C at 760 mmHg
Melting Point	120-122 °C(lit.)
Molecular Formula	C₁₀H₈O
Molecular Weight	144.170
Flash Point	144.0±10.6 °C
Exact Mass	144.057510
PSA	20.23000
LogP	2.71
Vapour density	4.97 (vs air)
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.678
Storage condition	Refrigerator
Stability	Stable. Combustible. Dust may form explosive mixture with air. Incompatible with strong oxidizing agents, phenol.
Water Solubility	1 g/L (20 ºC)

2-Naphthol MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QL2975000

CHEMICAL NAME :: 2-Naphthol

CAS REGISTRY NUMBER :: 135-19-3

LAST UPDATED :: 199710

DATA ITEMS CITED :: 30

MOLECULAR FORMULA :: C10-H8-O

MOLECULAR WEIGHT :: 144.18

WISWESSER LINE NOTATION :: L66J CQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1960 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 :: >770 mg/m3/1H

TOXIC EFFECTS :: Gastrointestinal - changes in structure or function of salivary glands

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2940 mg/kg

TOXIC EFFECTS :: Behavioral - sleep Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

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 :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 97500 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 :: Subcutaneous

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 - cat

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 :: Rodent - rabbit

DOSE/DURATION :: 3800 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 :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >10 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 :: Subcutaneous

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 :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 3800 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 - guinea pig

DOSE/DURATION :: 1335 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 :: Subcutaneous

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 2670 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10080 mg/kg/28D-C

TOXIC EFFECTS :: Kidney, Ureter, Bladder - changes in bladder weight 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 - rat

DOSE/DURATION :: 107 mg/kg/35W-I

TOXIC EFFECTS :: Brain and Coverings - other degenerative changes Behavioral - alteration of classical conditioning

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1350 ug/m3/17W-I

TOXIC EFFECTS :: Blood - changes in erythrocyte (RBC) count Blood - changes in leukocyte (WBC) count Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other esterases

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 298 mg/kg/35W-I

TOXIC EFFECTS :: Liver - liver function tests impaired

MUTATION DATA

TYPE OF TEST :: DNA repair

TEST SYSTEM :: Bacteria - Bacillus subtilis

DOSE/DURATION :: 5 gm/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 42,19,1977 *** REVIEWS *** TOXICOLOGY REVIEW MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 47,75,1978 *** 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 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-RUSSIA:STEL 0.1 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84296 No. of Facilities: 971 (estimated) No. of Industries: 18 No. of Occupations: 18 No. of Employees: 6346 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X1957 No. of Facilities: 113 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 453 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84296 No. of Facilities: 199 (estimated) No. of Industries: 11 No. of Occupations: 26 No. of Employees: 10985 (estimated) No. of Female Employees: 590 (estimated)

Symbol	GHS07, GHS09
Signal Word	Warning
Hazard Statements	H302 + H332-H400
Precautionary Statements	P273
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn:Harmful
Risk Phrases	R20/22;R50
Safety Phrases	S24/25-S61
RIDADR	UN 3077 9/PG 3
WGK Germany	2
RTECS	QL2975000
Packaging Group	III
Hazard Class	9
HS Code	2907151000

Precursor 9
CAS#:18081-08-8 (2-Naphtyloxy)t... CAS#:580-13-2 2-Bromonaphthalene CAS#:32316-92-0 2-Naphthalenebo... CAS#:86-55-5 naphthoic acid
CAS#:3698-15-5 2-prop-2-enoxyn... CAS#:62790-91-4 tert-butyl-dime... CAS#:7385-85-5 2-(4-methylphen... CAS#:93-04-9 2-Methoxynaphthalene
CAS#:2033-42-3 1-Iodo-2-naphthol
DownStream 10
CAS#:1081-32-9 6-tert-butylnap... CAS#:1221-65-4 1,6-Di-t-butyl-... CAS#:52684-34-1 naphthalen-2-yl... CAS#:111709-01-4 naphthalen-2-yl...
CAS#:10506-37-3 O-2-Naphthyl ch... CAS#:112169-51-4 (2-bromophenyl)... CAS#:111861-46-2 3-amino-1-pheny... CAS#:108975-37-7 1-[(2-methylpip...
CAS#:111861-47-3 3-amino-1-(2-ch... CAS#:100569-82-2 dl-1,1'-bi(2-na...

HS Code	2907151000
Summary	HS:2907151000 naphthalen-2-ol VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2-Naphthol
Price: Check
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China
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DC Chemicals Limited
China
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Naphthol
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

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Price: ￥550/10 mM * 1 mL in DMSO

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2-Naphthol

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