C8H24O12P2S
406.28 g/mol
Industrial ChemicalDanger
TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE
CAS55566-30-8EC259-709-0
Category
Industrial Chemical
Compound Class
Other
Primary Use
Flame retardant and biocide
Tetrakis(hydroxymethyl)phosphonium sulfate is an industrial chemical primarily used as a flame retardant and biocide. It is commonly applied to produce crease-resistant and flame-retardant finishes for textiles, including children's sleepwear.
Flame-retardant finish for textilesBiocideCrease-resistant finish 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 chloride
CAS124-64-1
Flame retardant for textiles
ReferenceSame Category
Allyl iodide
CAS556-56-9
Chemical intermediate for organic synthesis
ReferenceSame Category
Zinc stearate
CAS557-05-1
releasing agent and lubricant
ReferenceSame Category
Diethylzinc
CAS557-20-0
Chemical intermediate and catalyst
ReferenceSame Category
Ethylamine hydrochloride
CAS557-66-4
production of resins and rubber latex
Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H317May cause an allergic skin reaction
H318Causes serious eye damage
H330Fatal if inhaled
H331Toxic if inhaled
H360May damage fertility or the unborn child
H361Suspected of damaging fertility or the unborn child
H372Causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H411Toxic to aquatic life with long lasting effects
H373May cause damage to organs through prolonged or repeated exposure
Customs Tariff Classification
The international HS code for TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE (CAS 55566-30-8) 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
bis(tetrakis(hydroxymethyl)phosphanium);sulfate
InChIKey
YIEDHPBKGZGLIK-UHFFFAOYSA-L
SMILES
C(O)[P+](CO)(CO)CO.C(O)[P+](CO)(CO)CO.[O-]S(=O)(=O)[O-]
Synonyms (16)
- THPS
- 75% in H2O
- PROBAN NX
- Pyroset TKO
- Retardol S
- THPS 75
- TOLCIDE PS
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