4,4′-Diamino-2,2′-stilbenedisulfonic acid

Modify Date: 2025-08-22 08:50:05

4,4′-Diamino-2,2′-stilbenedisulfonic acid structure	Common Name	4,4′-Diamino-2,2′-stilbenedisulfonic acid
	CAS Number	81-11-8	Molecular Weight	370.401
	Density	1.7±0.1 g/cm3	Boiling Point	N/A
	Molecular Formula	C₁₄H₁₄N₂O₆S₂	Melting Point	300 °C
	MSDS	Chinese USA	Flash Point	N/A
	Symbol	GHS07	Signal Word	Warning

Name	4,4'-Diamino-2,2'-stilbenedisulfonic acid
Synonym	More Synonyms

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

MSDS(Chinese)

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

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Detail

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

Precursor 9
CAS#:1211962-72-9 4,4'-dinitrosti... CAS#:121-03-9 4-nitrotoluene-... CAS#:119-72-2 4-Nitro-4'-amin... CAS#:7803-57-8 Hydrazine hydrate
CAS#:111-46-6 Diethylene glycol CAS#:6404-60-0 4,4'-dinitrobib... CAS#:7647-01-0 Hydrochloric acid CAS#:16473-79-3 3,3'-Azobis[6-[...
CAS#:7732-18-5 Water
DownStream 3
CAS#:26092-49-9 4,4'-Dihydrazin... CAS#:58727-02-9 5-[(4-aminophen... CAS#:5136-34-5 5-amino-2-[2-(4...

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%

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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

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4,4′-Diamino-2,2′-stilbenedisulfonic acid

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Chemical & Physical Properties

MSDS

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CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

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Precursor & DownStream

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