Basic Information
English Name Phenothiazine
Synonyms Thiodiphenylamine, 10H-Phenothiazine, Dibenzo-p-thiazine
CAS No. 92-84-2Molecular Formula C₁₂H₉NS
Molecular Weight 199.27
EINECS 202-196-5
Chemphysical Properties
Appearance Yellow to greenish-grey crystalline powder / flake
Melting Point 182–187 °C
Boiling Point 371 °CFlash Point 202 °C
Density 1.362 g/cm³
Solubility Slightly soluble in ethanol, freely soluble in acetone, almost insoluble in water (≤2 mg/L @25℃)
Quality Specification (Industrial Grade, 99% Min)
| Test Item | Standard |
|---|---|
| Assay (HPLC) | ≥99.0% |
| Melting Range | 183–186 ℃ |
| Loss on Drying | ≤0.5% |
| Sulphated Ash | ≤0.2% |
| Heavy Metals (Pb) | ≤10 ppm |
Application & Use
Polymer industry: Polymerization inhibitor & antioxidant for acrylic, vinyl monomers
Pharmaceutical intermediate: Core raw material for phenothiazine-type antipsychotic, antihistamine drugsVeterinary & agro: Anthelmintic agent
Others: Dye intermediate, photochemical sensitizer
Packing
25kg fiber drum / 1kg aluminum foil bag, or customized packaging
Storage & Transportation
Storage: Sealed, cool & dry, away from light, keep away from oxidants
Transport: Classified as general hazardous chemical; avoid dust inhalation, skin & eye contact
Shelf life: 24 months under proper storage
GHS Hazard: H315, H319, H335; May cause damage to liver, kidney and central nervous system with prolonged exposure
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