CAS 131-91-9|1-Nitroso-2-naphthol

Introduction：Basic information about CAS 131-91-9|1-Nitroso-2-naphthol, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Table of Contents

1. Names
2. Chemical & Physical Properties
3. Toxicological Information
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
MUTATION DATA
4. Safety Information
5. Customs
6. Articles18
7. Synonyms

Common Name	1-Nitroso-2-naphthol
CAS Number	131-91-9	Molecular Weight	173.168
Density	1.3±0.1 g/cm3	Boiling Point	357.6±25.0 °C at 760 mmHg
Molecular Formula	C₁₀H₇NO₂	Melting Point	106-108 °C (dec.)(lit.)
MSDS	ChineseUSA	Flash Point	170.1±23.2 °C
Symbol	GHS07	Signal Word	Warning

Names

Name	1-Nitroso-2-naphthol
Synonym	More Synonyms

Chemical & Physical Properties

Density	1.3±0.1 g/cm3
Boiling Point	357.6±25.0 °C at 760 mmHg
Melting Point	106-108 °C (dec.)(lit.)
Molecular Formula	C₁₀H₇NO₂
Molecular Weight	173.168
Flash Point	170.1±23.2 °C
Exact Mass	173.047684
PSA	49.66000
LogP	2.42
Vapour Pressure	0.0±0.8 mmHg at 25°C
Index of Refraction	1.630
InChIKey	YXAOOTNFFAQIPZ-UHFFFAOYSA-N
SMILES	O=Nc1c(O)ccc2ccccc12
Water Solubility	insoluble

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QL4725000

CHEMICAL NAME :: 2-Naphthol, 1-nitroso-

CAS REGISTRY NUMBER :: 131-91-9

BEILSTEIN REFERENCE NO. :: 0776947

LAST UPDATED :: 199710

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: C10-H7-N-O2

MOLECULAR WEIGHT :: 173.18

WISWESSER LINE NOTATION :: L66J BNO CQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 500 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 :: Unreported

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 400 mg/kg

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

MUTATION DATA

TYPE OF TEST :: DNA repair

TEST SYSTEM :: Bacteria - Bacillus subtilis

DOSE/DURATION :: 10 mmol/L

REFERENCE :: JNSVA5 Journal of Nutritional Science and Vitaminology. (Business Center for Academic Soc. Japan, 2-4-16 Yayoi, Bunkyo-ku, Tokyo 113, Japan) V.19- 1973- Volume(issue)/page/year: 25,317,1979 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82063 No. of Facilities: 75 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 1215 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 82063 No. of Facilities: 20 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 799 (estimated) No. of Female Employees: 655 (estimated)

Safety Information

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H302-H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn:Harmful;
Risk Phrases	R33
Safety Phrases	S26-S36-S45
RIDADR	UN3077
WGK Germany	3
RTECS	QL4725000
Packaging Group	III
Hazard Class	9
HS Code	29089000

Customs

HS Code	2908999090
Summary	2908999090 halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Articles18

Improved fluorometric determination of acetaminophen and its conjugates with 1-nitroso-2-naphthol in whole blood and urine.

Chem. Pharm. Bull. 30(1) , 358-61, (1982)

Determination of urinary homovanillic acid using the nitrosonaphthol reaction.

Am. J. Clin. Pathol. 87(5) , 644-8, (1987)

Determination of urinary homovanillic acid (HVA) is an important analysis to establish the diagnosis and prognosis of neuroblastoma. A method is presented for the determination of this metabolite of d...

Improved quantitation for urinary 5-hydroxyindole acetate using the nitrosonaphthol reaction.

Clin. Biochem. 17(1) , 37-8, (1984)

Synonyms

Nitroso-2-Naphthol

Zelen moridlova 4

ortho-hydroxynitrosonaphthalene

1-NITROSO-2-NAPTHOL

1-Nitroso-2-naphthol

1-nitroso-2-naphtho

1-nitroso-2-hydroxy-naphthalene

1-Nitroso-2-naphthalenol

1-Nitroso-2-naftol

2-hydroxy-1-nitrosonaphthalene

Nitroso-β-naphthol

EINECS 205-043-0

2-Naphthalenol, 1-nitroso-

MFCD00003884

Recommended......