Safety Reference
Danger
Sourcing TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE?
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Allyl iodide
Chemical intermediate for organic synthesis
Sourcing TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE?
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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.
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.
The international HS code for TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE (CAS 55566-30-8) is 2931.49.
2931.49
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.
bis(tetrakis(hydroxymethyl)phosphanium);sulfate
YIEDHPBKGZGLIK-UHFFFAOYSA-L
C(O)[P+](CO)(CO)CO.C(O)[P+](CO)(CO)CO.[O-]S(=O)(=O)[O-]