Fluorescent Brightener KSN cas no:7128-64-5
Synonyms: Benzoxazole,2,2'-(2,5-thiophenediyl)bis[5-tert-butyl- (7CI,8CI);2,2'-(2,5-Thiophenediyl)bis[5-(1,1-dimethylethyl)]benzoxazole;2,2'-(2,5-Thiophenediyl)bis[5-tert-butylbenzoxazole];2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene;2,5-Bis(5'-tert-butyl-2-benzoxazolyl)thiophene;2,5-Bis[5-tert-butylbenzooxazol-2-yl]thiophene;2,5-Di(5-tert-butylbenzoxazol-2-yl)thiophene;BBOT;BBOT 150;C.I. 515245;C.I. FBA 184;C.I. Fluorescent Brightener 184;C.I. Fluorescent Brightening Agent 184;Fluorescent Brightener 184;KeyfluorWhite PL;NSC 158163;O-B TECH;OB;TBO;Tinopal OB;Uvitex 3BSA;Uvitex OB;UvitexOB 55;Fluorescent Brightener CI:184 OB;
NameFluorescent Brightener KSN
CAS7128-64-5
SynonymsBenzoxazole,2,2'-(2,5-thiophenediyl)bis[5-tert-butyl- (7CI,8CI);2,2'-(2,5-Thiophenediyl)bis[5-(1,1-dimethylethyl)]benzoxazole;2,2'-(2,5-Thiophenediyl)bis[5-tert-butylbenzoxazole];2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene;2,5-Bis(5'-tert-butyl-2-benzoxazolyl)thiophene;2,5-Bis[5-tert-butylbenzooxazol-2-yl]thiophene;2,5-Di(5-tert-butylbenzoxazol-2-yl)thiophene;BBOT;BBOT 150;C.I. 515245;C.I. FBA 184;C.I. Fluorescent Brightener 184;C.I. Fluorescent Brightening Agent 184;Fluorescent Brightener 184;KeyfluorWhite PL;NSC 158163;O-B TECH;OB;TBO;Tinopal OB;Uvitex 3BSA;Uvitex OB;UvitexOB 55;Fluorescent Brightener CI:184 OB;
EINECS(EC#)230-426-4
Molecular FormulaC26H26 N2 O2 S
Molecular Weight430.562
AppearanceBright Yellow powder
refractive index1.617
storage tempKeep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Risk R36/37/38
Safety
Safety Information of 2,5-Bis(5-tert-butylbenzoxazol-2-yl)thiophene (CAS NO. 7128-64-5):
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 24/25
S24/25: Avoid contact with skin and eyes
WGK Germany: 1
RTECS: DM4888332
Low toxicity by ingestion. When heated to decomposition it emits toxic vapors of NOx and SOx.
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orl-rat LD50:>10?g/kg
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MVCRB3 ?? Fluorescent Whitening Agents, Proceedings of A Symposium. 2 (1973),193. |
