2-Naphthalenamine,1-[2-(2-methylphenyl)diazenyl]-

Modify Date: 2025-08-21 11:08:47

2-Naphthalenamine,1-[2-(2-methylphenyl)diazenyl]- Structure
2-Naphthalenamine,1-[2-(2-methylphenyl)diazenyl]- structure
Common Name 2-Naphthalenamine,1-[2-(2-methylphenyl)diazenyl]-
CAS Number 131-79-3 Molecular Weight 261.32100
Density 1.15g/cm3 Boiling Point 478.7ºC at 760mmHg
Molecular Formula C17H15N3 Melting Point N/A
MSDS N/A Flash Point 243.3ºC

 Names

Name 1-[(2-methylphenyl)diazenyl]naphthalen-2-amine
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.15g/cm3
Boiling Point 478.7ºC at 760mmHg
Molecular Formula C17H15N3
Molecular Weight 261.32100
Flash Point 243.3ºC
Exact Mass 261.12700
PSA 50.74000
LogP 5.72700
Vapour Pressure 2.51E-09mmHg at 25°C
Index of Refraction 1.636

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
QM5400000
CHEMICAL NAME :
2-Naphthylamine, 1-(o-tolylazo)-
CAS REGISTRY NUMBER :
131-79-3
BEILSTEIN REFERENCE NO. :
0658385
LAST UPDATED :
199612
DATA ITEMS CITED :
15
MOLECULAR FORMULA :
C17-H15-N3
MOLECULAR WEIGHT :
261.35
WISWESSER LINE NOTATION :
L66J BNUNR B& CZ

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 :
120 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 - mouse
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 :
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 :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rabbit
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 :
Subcutaneous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
36400 mg/kg/2Y-C
TOXIC EFFECTS :
Blood - changes in cell count (unspecified) Related to Chronic Data - death
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
45625 mg/kg/1Y-C
TOXIC EFFECTS :
Related to Chronic Data - death
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
700 mg/kg/2Y-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Tumorigenic - tumors at site of application

MUTATION DATA

TYPE OF TEST :
Mutation in microorganisms
TEST SYSTEM :
Bacteria - Salmonella typhimurium
DOSE/DURATION :
50 ug/plate
REFERENCE :
CANCAR Cancer (Philadelphia). (Lippincott/Harper, Journal Fulfillment Dept., 2350 Virginia Ave., Hagerstown, MD 21740) V.1- 1948- Volume(issue)/page/year: 49,1970,1982 *** REVIEWS *** IARC Cancer Review:Animal Limited Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 8,287,1975 IARC Cancer Review:Human No Adequate Data IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 8,287,1975 IARC Cancer Review:Group 3 IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,56,1987 TOXICOLOGY REVIEW ARVPAX Annual Review of Pharmacology. (Palo Alto, CA) V.1-15, 1961-75. For publisher information, see ARPTDI. Volume(issue)/page/year: 14,127,1974 TOXICOLOGY REVIEW ZEKBAI Zeitschrift fuer Krebsforschung. (Berlin, Fed. Rep. Ger.) V.1-75, 1903-71. For publisher information, see JCROD7. Volume(issue)/page/year: 60,344,1955

 Safety Information

HS Code 2927000090

 Customs

HS Code 2927000090
Summary 2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

 Synonyms

Yellow OB
Cerisol Yellow TB
Jaune OB
Oil Yellow OB
C.I. Solvent Yellow 6
C Yellow 4
Oil Yellow OB Pure
1-o-Tolylazo-[2]naphthylamin
C.I. Food Yellow 11
1-o-tolylazo-[2]naphthylamine
1-(2'-methylbenzeneazo)-2-amino-naphthalene
o-(2-amino-1-naphthylazo)toluene
FD and C Yellow No. 4
Dolkwal Yellow OB
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