4,4'-二氨基二苯基乙烯-2,2'-二磺酸

Description

4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid · CAS 81-11-8 · C14H14N2O6S2. UNII 899GJ5MP05. LogP: -1.7.

Identification

CAS Registry Number	81-11-8
PubChem CID	6668
Molecular formula	C14H14N2O6S2
IUPAC name	5-amino-2-[2-(4-amino-2-sulfophenyl)ethenyl]benzenesulfonic acid
UNII (FDA)	899GJ5MP05

Computed Descriptors

Molecular Weight	370.4
XLogP3	0.3
Hydrogen Bond Donor Count	4
Hydrogen Bond Acceptor Count	8
Rotatable Bond Count	4
Exact Mass	370.02932852
Monoisotopic Mass	370.02932852
Topological Polar Surface Area	178
Heavy Atom Count	24
Formal Charge	0

Physical & Chemical Properties

LogP	-1.7

Physical description & handling notes

• 4,4'-diamino-2,2'-stilbenedisulfonic acid appears as odorless yellowish microscopic needles or cream-colored powder. pH approximately 4.3 at 30 g/L water (suspension). (NTP, 1992)
• Dry Powder; Large Crystals; Liquid
• Yellow solid; [Merck Index]
• YELLOW NEEDLES
• greater than 617 °F (NTP, 1992)
• less than 1 mg/mL at 73 °F (NTP, 1992)

Regulatory Status

GHS notification summary	1% (2 / 210)

GHS Hazard Classification

GHS notification summary	1% (2 / 210)
Reported hazard statements	H302 (18.6%), H412 (75.2%)

Documented Uses

• Used as a chemical intermediate for dyes, bleaching agents, and fluorescent brighteners; [HSDB]
• IN MFR OF DYES, BLEACHING AGENTS
• CHEM INT FOR DYES (EG, CI DIRECT YELLOW 12) & FLUORESCENT BRIGHTENERS
• Information on 13 consumer products that contain Diaminostilbenedisulfonic acid in the following categories is provided:
• CATALYTIC REDUCTION OF 4,4'-DINITRO-2,2'-STILBENEDISULFONIC ACID
• BENDER, SCHULTZ, BER 19, 3234 (1886); HE FIERZ-DAVID, L BLANGEY, GRUNDLEGENDE OPERATONEN DER FARBENCHEMIE (SPRINGER-VERLAG, VIENNA, 7TH ED, 1947) P 161; SPIEGLER, US PATENT 2,784,220 (1957 TO DUPONT).

Synonyms

4,4'-DIAMINO-2,2'-STILBENEDISULFONIC ACID; Amsonic acid; DTXSID5024926; Amsonsaeure; Diaminostilbenedisulfonic acid; Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-amino-; NCI-C60162; DTXCID204926; 2,2'-(1,2-Ethylenediyl)bis(5-aminobenzenesulfonic acid); Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-amino-; NSC-163; 899GJ5MP05; DADS; DASSA; RefChem:920003; 4,4'-diacetamido-2,2'-stilbene disulfonate

Frequently Asked Questions

What are the CAS number and molecular formula of 4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid?

CAS 81-11-8; molecular formula C14H14N2O6S2; molecular weight — g/mol.

What other names is 4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid known by?

4,4'-DIAMINO-2,2'-STILBENEDISULFONIC ACID, Amsonic acid, DTXSID5024926, Amsonsaeure, Diaminostilbenedisulfonic acid, Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-amino-.

Is 4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid classified as hazardous?

1% of GHS notifications report no hazard classification (2 of 210).

What are the key physical properties of 4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid?

LogP: -1.7.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.