Safety Reference
Danger
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H319
Sourcing Sildenafil chlorosulfonyl?
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Desmethylsildenafil
pharmaceutical raw material
Sourcing Sildenafil chlorosulfonyl?
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Sildenafil chlorosulfonyl is a chemical compound that serves as an intermediate in pharmaceutical manufacturing. It features a complex aromatic structure containing heterocyclic rings and a sulfonyl chloride functional group.
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 Sildenafil chlorosulfonyl (CAS 139756-22-2) is 2933.59.
2933.59
2933 59 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-5-yl)benzenesulfonyl chloride
RVVOSOSBFSYZDM-UHFFFAOYSA-N
CCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)Cl)OCC)C