4-(Methylamino)azobenzene

Modify Date: 2025-08-24 09:09:23

4-(Methylamino)azobenzene structure	Common Name	4-(Methylamino)azobenzene
	CAS Number	621-90-9	Molecular Weight	211.26200
	Density	1.06g/cm3	Boiling Point	370.2ºC at 760 mmHg
	Molecular Formula	C₁₃H₁₃N₃	Melting Point	87ºC
	MSDS	N/A	Flash Point	177.7ºC

Name	N-methyl-4-phenyldiazenylaniline
Synonym	More Synonyms

Density	1.06g/cm3
Boiling Point	370.2ºC at 760 mmHg
Melting Point	87ºC
Molecular Formula	C₁₃H₁₃N₃
Molecular Weight	211.26200
Flash Point	177.7ºC
Exact Mass	211.11100
PSA	36.75000
LogP	4.21670
Index of Refraction	1.584
InChIKey	DKOXITJAUZNAPK-UHFFFAOYSA-N
SMILES	CNc1ccc(N=Nc2ccccc2)cc1

4-(Methylamino)azobenzene MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: BY5950000

CHEMICAL NAME :: Aniline, N-methyl-p-(phenylazo)-

CAS REGISTRY NUMBER :: 621-90-9

LAST UPDATED :: 199410

DATA ITEMS CITED :: 26

MOLECULAR FORMULA :: C13-H13-N3

MOLECULAR WEIGHT :: 211.29

WISWESSER LINE NOTATION :: 1MR DNUNR

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 600 mg/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 :: 634 mg/kg/5W-I

TOXIC EFFECTS :: Tumorigenic - neoplastic by RTECS criteria Sense Organs and Special Senses (Ear) - effect, not otherwise specified Liver - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 930 mg/kg/58W-I

TOXIC EFFECTS :: Tumorigenic - neoplastic by RTECS criteria Skin and Appendages - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 317 mg/kg/3W-I

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 480 mg/kg/12W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors Skin and Appendages - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3592 ug/kg

TOXIC EFFECTS :: Tumorigenic - neoplastic by RTECS criteria Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3700 mg/kg/17W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2600 mg/kg/15W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2550 mg/kg/19W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 11 mg/kg

TOXIC EFFECTS :: Tumorigenic - neoplastic by RTECS criteria Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3400 mg/kg/27W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 13 gm/kg/34W-C

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

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 38 mg/kg

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Sense Organs and Special Senses (Ear) - effect, not otherwise specified Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2100 mg/kg/5W-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 400 mg/kg

SEX/DURATION :: female 8-9 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 400 mg/kg

SEX/DURATION :: female 10-11 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 400 mg/kg

SEX/DURATION :: female 8-9 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - musculoskeletal system

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 150 mg/kg

SEX/DURATION :: female 10 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetal death

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 600 mg/kg

SEX/DURATION :: female 9-10 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

TYPE OF TEST :: DNA adduct

TYPE OF TEST :: DNA damage

TYPE OF TEST :: DNA adduct

MUTATION DATA

TYPE OF TEST :: Unscheduled DNA synthesis

TEST SYSTEM :: Rodent - mouse Liver

DOSE/DURATION :: 1 umol/L

REFERENCE :: GANNA2 Gann. Japanese Journal of Cancer Research. (Tokyo, Japan) V.1-75, 1907-84. For publisher information, see JJCREP. Volume(issue)/page/year: 72,930,1981

Risk Phrases	40
Safety Phrases	S53
HS Code	2927000090

Precursor 10
CAS#:2747-31-1 N,N-dimethyl-4-... CAS#:13921-67-0 N,N-dimethyl-4-... CAS#:60-11-7 Methyl Yellow CAS#:100-34-5 Benzenediazoniu...
CAS#:100-61-8 N-Methylaniline CAS#:297766-64-4 (phenylimino)-2... CAS#:2684-02-8 benzenediazonium CAS#:74-83-9 Methyl bromide
CAS#:60-09-3 Aniline Yellow CAS#:7722-84-1 Hydrogen peroxide
DownStream 2
CAS#:60-11-7 Methyl Yellow CAS#:4845-14-1 N-methyl-N-(4-p...

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%

4-Benzolazo-N-methyl-anilin

N-methyl-4-phenylazo-aniline

4-Monomethylaminoazobenzene

N-Methyl-4-aminoazobenzene

p-Monomethylaminoazobenzene

N-Methyl-p-aminoazobenzene

4-Phenylazo-N-methylanilin

4-Methylamino-azobenzol

N-Methyl-4-phenylazo-anilin

N-Methyl-4-amino-azobenzol

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4-(Methylamino)azobenzene

Names

Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

Safety Information

Synthetic Route

Precursor & DownStream

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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.