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7336-20-1

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Basic Information
CAS No.: 7336-20-1
Name: disodium 4,4'-diaminostilbene-2,2'-disulphonate
Molecular Structure:
Molecular Structure of 7336-20-1 (disodium 4,4'-diaminostilbene-2,2'-disulphonate)
Formula: C14H14 N2 O6 S2 . 2 Na
Molecular Weight: 414.371
Synonyms: 2,2'-Stilbenedisulfonicacid, 4,4'-diamino-, disodium salt (6CI,7CI,8CI); Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis[5-amino-, disodium salt (9CI);4,4'-Diamino-2,2'-stilbenedisulfonic acid disodium salt; Disodium4,4'-diamino-2,2'-stilbenedisulfonate; Disodium4,4'-diaminodiphenylethylene-2,2'disulfonate
Solubility: 100g/L at 20℃
Safety: Questionable carcinogen with negative NTP carcinogenesis bioassay. When heated to decomposition it emits toxic vapors of NOx and SOx.
PSA: 183.20000
LogP: 4.15360
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Chemistry

IUPAC Name: Disodium 5-amino-2-[(E)-2-(4-amino-2-sulfonatophenyl)ethenyl]benzenesulfonate
Synonyms of Flavonic acid disodium salt (CAS NO.7336-20-1) : 2,2'-(1,2-Ethenediyl)bis(5-aminobenzenesulfonic acid) disodium salt ; 2,3'-(1,2-Ethenediyl)bis(5-aminobenzenesulfonic acid) disodium salt ; Amsonic acid disodium salt ;Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-amino-, disodium salt ;Diaminostilbene disulphonate disodium salt ; Flavonic acid disodium salt ; p,p'-Diaminostilbene-o,o'-disulfonic acid disodium salt ; 4,4'-Diamino-2,2'-stilbenedisulfonic acid, disodium salt
InChI: InChI=1/C14H14N2O6S2.2Na/c15-11-5-3-9(13(7-11)23(17,18)19)1-2-10-4-6-12(16)8-14(10)24(20,21)22;;/h1-8H,15-16H2,(H,17,18,19)(H,20,21,22);;/q;2*+1/p-2/b2-1+;; Copy
InChIKey: YAKFHPREDNNSFX-HYKNURKJBD
CAS NO:7336-20-1
Molecular Formula:C14H12N2Na2O6S2
Molecular Weight :414.3644
Molecular Structure :
EINECS: 230-847-3
Appearance: Flavonic acid disodium salt (CAS NO.7336-20-1) is odorless light yellow crystals or powder.
Water solubility: Water soluble.
Sensitivity: Flavonic acid disodium salt (CAS NO.7336-20-1) is sensitive to iron.

Toxicity Data With Reference

1.    

orl-rat TDLo:42 g/kg/14D-C

     NTPTR*    National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No. NTP-TR-412 ,1992.
2.    

orl-mus TDLo:168 g/kg/14D-C

     NTPTR*    National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No. NTP-TR-412 ,1992.

Consensus Reports

Reported in NTP Carcinogenesis Studies (feed); No Evidence: rat, mouse NTPTR*    National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No. NTP-TR-412 ,1992. . Reported in EPA TSCA Inventory.

Safety Profile

Questionable carcinogen with negative NTP carcinogenesis bioassay. When heated to decomposition it emits toxic vapors of NOx and SOx.