Phenol red
time:2014-12-18 13:00:52,count:0

 

Phenol red
Alias
Phenolsulfonphthalein
Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-
Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis-, (S,S-dioxide)
Category
Non-ionic surfactants-Phenol
CAS No.
143-74-8
Molecular Formula & Molecular Weight
Molecular Formula: C19H14SO5
Molecular Weight: 354.38
Structural Formula
Properties
Appearance: dark-red crystal.
Solubility: slightly soluble in water.
Stability: stable.
Risk: irritation, irritation to skin, eye.
Animal toxicity[1]: mouse intravenous LD50: 1368mg/Kg;
rat intravenous LD50: 752mg/Kg;
rat subcutaneous LD50: > 600mg/Kg.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent dispersing, emulsifying abilities.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
Actives*, %, ≥
90
 
*: should be marked on molecular weight.
Major Uses
Use as indicator.
Use as dye.
Buffering agent in personal care products.
Manufacturers
 
References
[1]:http://toxnet.nlm.nih.gov/: 143-74-8

 

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