Shanghai Nianxing Industrial Co., Ltd
China
Product Name: m-methyl red
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: m-methyl red
Price: ￥98.0/5g ￥338.0/25g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

20691-84-3

20691-84-3 structure

20691-84-3 structure

Name: m-methyl red
Chemical Name: 3-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid
CAS Number: 20691-84-3
Molecular Formula: C₁₅H₁₅N₃O₂
Molecular Weight: 269.298
Catalog: Biochemical Biochemical reagent Biological dye
Create Date: 2018-09-20 19:41:49
Modify Date: 2025-08-27 19:10:44

Name	3-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid
Synonyms	3-{(E)-[4-(Dimethylamino)phenyl]diazenyl}benzoic acid 3'-Carboxy-4-dimethylaminoazobenzene Benzoic acid, 3-[(E)-2-[4-(dimethylamino)phenyl]diazenyl]- m-Methyl Red 4-Dimethylaminoazobenzene-3'-carboxylic Acid N,N-Dimethyl-4-aminoazobenzene-3'-carboxylic acid

Density	1.2±0.1 g/cm3
Boiling Point	486.2±30.0 °C at 760 mmHg
Molecular Formula	C₁₅H₁₅N₃O₂
Molecular Weight	269.298
Flash Point	247.8±24.6 °C
Exact Mass	269.116425
PSA	65.26000
LogP	4.17
Vapour Pressure	0.0±1.3 mmHg at 25°C
Index of Refraction	1.593

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DG8959500

CHEMICAL NAME :: Benzoic acid, m-((p-(dimethylamino)phenyl)azo)-

CAS REGISTRY NUMBER :: 20691-84-3

BEILSTEIN REFERENCE NO. :: 1843300

LAST UPDATED :: 199612

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C15-H15-N3-O2

MOLECULAR WEIGHT :: 269.33

WISWESSER LINE NOTATION :: QVR CNUNR DN1&1

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 :: 3757 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 :: 12 gm/kg/57W-C

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

MUTATION DATA

TYPE OF TEST :: Unscheduled DNA synthesis

TEST SYSTEM :: Rodent - rat Liver

DOSE/DURATION :: 10 umol/L

REFERENCE :: CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year: 46,1654,1986

Hazard Codes	Xn
RTECS	DG8959500
HS Code	2927000090

931424-06-5 structure

931424-06-5

121-69-7 structure

121-69-7

~6%

20691-84-3 structure

20691-84-3

138-89-6 structure

138-89-6

Detail

Literature: Journal of Heterocyclic Chemistry, , vol. 44, # 1 p. 13 - 19

100-23-2 structure

100-23-2

121-92-6 structure

121-92-6

~%

20691-84-3 structure

20691-84-3

Literature: Chemische Berichte, , vol. 31, p. 2201 Zeitschrift fuer Elektrochemie und Angewandte Physikalische Chemie, , vol. 5, p. 460

Precursor 4
931424-06-5 121-69-7 100-23-2 121-92-6
DownStream 0

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%

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