C4H12ClO4P
190.56 g/mol
Industrial ChemicalDanger
Tetrakis(hydroxymethyl)phosphonium chloride
CAS124-64-1EC204-707-7
Category
Industrial Chemical
Compound Class
Other
Primary Use
Flame retardant for textiles
Tetrakis(hydroxymethyl)phosphonium chloride is a phosphonium salt commonly used as a flame retardant for textiles. It is a colorless or white crystalline compound with four alcohol functional groups, contributing to its reactivity and water solubility.
flame retardant for textiles
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
Tetrakis(hydroxymethyl)phosphonium sulfate
CAS55566-30-8
Flame retardant and biocide
ReferenceSame Category
Aminomethylpropanol
CAS124-68-5
buffer and chemical intermediate
ReferenceSame Category
Dichloromethylvinylsilane
CAS124-70-9
Chemical intermediate for silicones
ReferenceSame Category
N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)-N,N'-diformylhexamethylenediamine
CAS124172-53-8
UV light stabilizer for plastics
ReferenceSame Category
Magnesium fluorosilicate
CAS12449-55-7
Mothproofing textiles agent
Safety Reference
Danger
H290May be corrosive to metals
H301Toxic if swallowed
H311Toxic in contact with skin
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H400Very toxic to aquatic life
H411Toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Tetrakis(hydroxymethyl)phosphonium chloride (CAS 124-64-1) is 2931.49.
HS code (international, 6-digit)
2931.49
EU CN code (8-digit)
2931 49 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
tetrakis(hydroxymethyl)phosphanium chloride
InChIKey
AKXUUJCMWZFYMV-UHFFFAOYSA-M
SMILES
C(O)[P+](CO)(CO)CO.[Cl-]
Synonyms (19)
- THPC
- Proban CC
- Pyroset TKC
- Retardol C
- THPC solution
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