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4430-25-5

Basic Information
CAS No.: 4430-25-5
Name: Tetrabromophenol Blue
Molecular Structure:
Molecular Structure of 4430-25-5 (Tetrabromophenol Blue)
Formula: C19H6Br8O5S
Molecular Weight: 985.552
Synonyms: Phenol,4,4'-(4,5,6,7-tetrabromo-3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo-,S,S-dioxide;Tetrabromophenol blue (6CI);NSC 11236;Tetrabromphenol blue;
EINECS: 224-622-9
Density: 2.668 g/cm3
Melting Point: 24/25
Boiling Point: 728.8 °C at 760 mmHg
Flash Point: 394.6 °C
Solubility: soluble in water
Appearance: beige powder
Safety: 24/25
PSA: 92.21000
LogP: 10.28940
Synthetic route
4.5.6.7-tetrabromo-phenolsulfonphthalein

4.5.6.7-tetrabromo-phenolsulfonphthalein

4430-25-5

tetrabromophenol blue

Conditions
ConditionsYield
With bromine; acetic acid
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  • Phenol,4,4'-(4,5,6,7-tetrabromo-1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo-

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    4430-25-5

    Phenol,4,4'-(4,5,6,7-tetrabromo-1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo-

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Chemistry

The molecular formula of Tetrabromophenol blue(4430-25-5) is C19H6Br8O5S and its formula weight is 986.55.
The density of Tetrabromophenol blue(4430-25-5) is 2.668 g/cm3  and it has a melting point of  204 °C (dec.)(lit.). The boiling point is  728.8 °C at 760 mmHg. The refractive index is about  1.774. Its flash point is  394.6 °C.
The chemical synonyms of Tetrabromophenol blue(4430-25-5) are TETRABROMOPHENOLTETRABROMOSULFONEPHTHALEIN;TETRABROMOPHENOL BLUE;TETRABROMOPHENOL BLUE SULFONE FORM;TETRABROMPHENOLBLUE;TETRABROMOPHENOLTETRABROMOSULFOPHTHALEIN;PHENOL, 4,4'-(4,5,6,7-TETRABROMO-3H-2,1-BENZOXATHIOL-3-YLIDENE)BIS[2,6-DIBROMO-, S,S-DIOXIDE;NSC 11236;4,4’-(4,5,6,7-tetrabromo-3h-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo-pheno
The molecular structure of Tetrabromophenol blue(4430-25-5):

Toxicity Data With Reference

RTECS#: CAS# 4430-25-5: None listed 
LD50/LC50: RTECS: Not available. 
Carcinogenicity: Tetrabromophenol Blue - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.
Other: The toxicological properties have not been fully investigated.

Safety Profile

Safety Statements  24/25
WGK Germany  3

Specification

Section 10 - Stability and Reactivity 
Chemical Stability: Not available 
Conditions to Avoid: Incompatible materials. 
Incompatibilities with Other Materials Strong oxidizing agents. 
Hazardous Decomposition Products Carbon monoxide, carbon dioxide, hydrogen bromide, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide. 
Hazardous Polymerization Has not been reported.