Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H315
Sourcing this compound?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Descarboxymethyl treprostinil
pharmaceutical intermediate
Sourcing this compound?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
This compound is a brominated and chlorinated pyridopyrimidinone derivative used as a pharmaceutical intermediate in the manufacturing of palbociclib, a drug substance for cancer research.
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 6-Bromo-2-chloro-8-cyclopentyl-5-methylpyrido[2,3-d]pyrimidin-7(8H)-one (CAS 1016636-76-2) is 2933.79.
2933.79
2933 79 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
6-bromo-2-chloro-8-cyclopentyl-5-methylpyrido[2,3-d]pyrimidin-7-one
HJQCAEDIUJXGCQ-UHFFFAOYSA-N
CC1=C(C(=O)N(C2=NC(=NC=C12)Cl)C3CCCC3)Br