Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 4,4′-Diamino-2,2′-stilbenedisulfonic acid
Price: ￥108.0/25g ￥278.0/100g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4,4'-Diamino-2,2'-stilbenedisulfonic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 4,4'-Diamino-2,2'-stilbenedisulfonic acid
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson

81-11-8

81-11-8 structure

Name: 4,4′-Diamino-2,2′-stilbenedisulfonic acid
Chemical Name: 4,4'-Diamino-2,2'-stilbenedisulfonic acid
CAS Number: 81-11-8
Molecular Formula: C₁₄H₁₄N₂O₆S₂
Molecular Weight: 370.401
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyridine compound Nitropyridine
Create Date: 2018-12-25 17:38:59
Modify Date: 2024-01-07 01:26:00

Name	4,4'-Diamino-2,2'-stilbenedisulfonic acid
Synonyms	MFCD00024946 4,4'-diaminostilbene-2,2'-disulphonic acid 4,4′-Diamino-2,2′-stilbenedisulfonic acid 2,2'-(1,2-ethenediyl)bis(5-amino)benzenesulfonic acid 2,2'-(1,2-Ethenediyl)bis(5-aminobenzenesulfonic acid) DSD ACID Amsonic acid AMSOMICACID 2,2'-Ethene-1,2-diylbis(5-aminobenzenesulfonic acid) DASDA flavonicacid Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-amino- 4,4'-diamino-stilbene-2,2'-disulfonic acid DASD DAS 4,4'-Diamino-2,2'-stilbenedisulfonic acid EINECS 201-325-2 tinopalbhs

Density	1.7±0.1 g/cm3
Melting Point	300 °C
Molecular Formula	C₁₄H₁₄N₂O₆S₂
Molecular Weight	370.401
Exact Mass	370.029327
PSA	177.54000
LogP	-1.72
Index of Refraction	1.726
Storage condition	-20°C Freezer
Stability	Stable. Combustible. Incompatible with iron, strong oxidizing agents.
Water Solubility	<0.1 g/100 mL at 23 ºC

CHEMICAL IDENTIFICATION

RTECS NUMBER :: WJ6603000

CHEMICAL NAME :: 2,2'-Stilbenedisulfonic acid, 4,4'-diamino-

CAS REGISTRY NUMBER :: 81-11-8

BEILSTEIN REFERENCE NO. :: 0629516

LAST UPDATED :: 199701

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C14-H14-N2-O6-S2

MOLECULAR WEIGHT :: 370.42

WISWESSER LINE NOTATION :: WSQR CZ F1U1R DZ BSWQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 47 gm/kg

TOXIC EFFECTS :: Liver - liver function tests impaired Kidney, Ureter, Bladder - renal function tests depressed

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 45(3),73,1980 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 300 mg/kg

SEX/DURATION :: female 1 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - uterus, cervix, vagina

REFERENCE :: JTEHD6 Journal of Toxicology and Environmental Health. (Hemisphere Pub., 1025 Vermont Ave., NW, Washington, DC 20005) V.1- 1975/76- Volume(issue)/page/year: 36,13,1992 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - T1888 No. of Facilities: 38 (estimated) No. of Industries: 2 No. of Occupations: 5 No. of Employees: 948 (estimated)

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H302
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	C:Corrosive
Risk Phrases	R34
Safety Phrases	S24/25-S45-S36/37/39-S26-S22
RIDADR	UN 2583
RTECS	WJ6603000
HS Code	2921420090

1211962-72-9

81-11-8

Literature: Chemische Berichte, , vol. 30, p. 3100 Journal of the Chemical Society, , vol. 89, p. 1605 Chemische Berichte, , vol. 36, p. 1554

121-03-9

81-11-8

Literature: DE38735 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 1, p. 510

121-03-9

118-88-7

81-11-8

Literature: Chemische Berichte, , vol. 19, p. 3235 DE40575 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 1, p. 512

119-72-2

81-11-8

Literature: Bulletin de la Societe Chimique de France, , vol. <3> 29, p. 349

121-03-9

7803-57-8

111-46-6

81-11-8

Literature: Journal of the American Chemical Society, , vol. 70, p. 2802,2804

1211962-72-9

7803-57-8

111-46-6

81-11-8

Literature: Journal of the American Chemical Society, , vol. 70, p. 2802,2804

6404-60-0

7803-57-8

111-46-6

81-11-8

Literature: Journal of the American Chemical Society, , vol. 70, p. 2802,2804

7647-01-0

16473-79-3

5136-34-5

81-11-8

Literature: Journal of the Chemical Society, , vol. 89, p. 1605

7647-01-0

1211962-72-9

7732-18-5

5136-34-5

Detail

Literature: Journal of the Chemical Society, , vol. 89, p. 1605 Chemische Berichte, , vol. 36, p. 1554

Precursor 9
1211962-72-9 121-03-9 119-72-2 7803-57-8
111-46-6 6404-60-0 7647-01-0 16473-79-3
7732-18-5
DownStream 3
26092-49-9 58727-02-9 5136-34-5

HS Code	2921420090
Summary	HS:2921420090 aniline derivatives and their salts VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

81-11-8	18511-69-8
5463-64-9	14484-50-5
4514-43-6	77113-79-2
85304-87-6	4576-39-0
21320-53-6	21316-20-1