Safety Reference
Danger
H300Fatal if swallowed
H413May cause long lasting harmful effects to aquatic life
Sourcing Provitamin D2?
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Tricine
pharmaceutical raw material
Sourcing Provitamin D2?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Ergosterol is a phytosterol that serves as the most important provitamin D, typically obtained from yeast. It is used in the commercial production of vitamin D2 and cortisone.
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 Provitamin D2 (CAS 57-87-4) is 2936.90.
2936.90
2936 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
(3S,9S,10R,13R,14R,17R)-17-[(E,2R,5R)-5,6-dimethylhept-3-en-2-yl]-10,13-dimethyl-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-ol
DNVPQKQSNYMLRS-APGDWVJJSA-N
C[C@H](/C=C/[C@H](C)C(C)C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3C2=CC=C4[C@@]3(CC[C@@H](C4)O)C)C