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27344-41-8

Basic Information
CAS No.: 27344-41-8
Name: Disodium 4,4'-bis(2-sulfostyryl)biphenyl
Molecular Structure:
Molecular Structure of 27344-41-8 (Disodium 4,4'-bis(2-sulfostyryl)biphenyl)
Formula: C28H20Na2O6S2
Molecular Weight: 562.58
Synonyms: Benzenesulfonicacid, 2,2'-(4,4'-biphenylylenedivinylene)di-, disodium salt (8CI);Benzenesulfonic acid, 2,2'-([1,1'-biphenyl]-4,4'-diyldi-2,1-ethenediyl)bis-,disodium salt (9CI);4,4'-Bis(2-sodiosulfostyryl)biphenyl;4,4'-Bis(o-sulfostyryl)biphenyldisodium salt;Brightener CBS-X;CBS-X;CF 351;CalcofluorCG;DSBP;Disodium4',4''-bi[stilbene-2,2'''-disulfonate];Stilbene 3;Stilbene 420;Tinopal CBS;Tinopal CBS-X;Tinopal SK;Uvitex NFW;Optical Brightener CBS-X;
EINECS: 248-421-0
Density: 1.414
Melting Point: >300°C (dec.)
Solubility: 17.6g/L at 20℃
Hazard Symbols: Xn,Xi
Risk Codes: R20/21/22; R36/37/38
Safety: 24/25
PSA: 131.16000
LogP: 7.66420
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    Product name: Fluorescent Whitener 4BK CAS No.:27344-41-8 Molecule Formula:C28H20Na2O6S2 Molecule Weight:562.56 Purity: 99% Package: 25kg/drum Description:Light yellow or greyish white powder Manufacture Standards:Enterprise Standard

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Chemistry

Molecular Structure of Tinopal CBS (CAS NO. 27344-41-8):

IUPAC Name: Disodium 2-[(Z)-2-[4-[4-[(Z)-2-(2-sulfonatophenyl)ethenyl]phenyl]phenyl]ethenyl]benzenesulfonate 
Molecular Formula:C28H20Na2O6S2
Molecular Weight:562.564340 g/mol
Density:1.414
Polar Surface Area: 125.5 Å2
EINECS:248-421-0
Product Categories of Tinopal CBS (CAS NO. 27344-41-8): Biphenyl & Diphenyl ether;Stilbenes

Toxicity Data With Reference

1.    

skn-rbt 500 mg/24H MLD

    MVCRB3    Fluorescent Whitening Agents, Proceedings of A Symposium. 2 (1973),193.
2.    

eye-rbt 100 mg SEV

    TXAPA9    Toxicology and Applied Pharmacology. 27 (1974),494.
3.    

eye-rbt 100 mg/25 rns MLD

    TXAPA9    Toxicology and Applied Pharmacology. 27 (1974),494.
4.    

orl-rat LD50:5580 mg/kg

    MVCRB3    Fluorescent Whitening Agents, Proceedings of A Symposium. 2 (1973),193.

Consensus Reports

EPA Genetic Toxicology Program. Reported in EPA TSCA Inventory.

Safety Profile

Mildly toxic by ingestion. A skin and severe eye irritant. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of SOx and Na2O.

Specification

  Tinopal CBS with cas registry number of 27344-41-8 is also called Benzenesulfonic acid, 2,2'-((1,1'-biphenyl)-4,4'-diyldi-2,1-ethenediyl)bis-, disodium salt ; Benzenesulfonic acid, 2,2'-((1,1'-biphenyl)-4,4'-diyldi-2,1-ethenediyl)bis-, sodium salt (1:2) ; Benzenesulfonic acid, 2,2'-(4,4'-biphenylylenedivinylene)di-, disodium salt ; Disodium 4,4'-bis(2-sulfostyryl)biphenyl ; Disodium 4,4'-bis-((4-anilino-6-(N-methyl-2-hydroxyethylamino)-1,3,5-triazin-2-yl)amino)stilbene-2,2'-disulfonate ; Disodium 2,2'-((1,1'-biphenyl)-4,4'-diyldivinylene)bis(benzenesulphonate) ; FBA 351 ; Stilbene 3 ; Tinopal CBS-X . It is used to white synthetic detergent, soap, to bleach cotton, linen and silk wool, nylon and paper.