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Home/Compounds/API/Allopurinol
C5H4N4O
136.11 g/mol
APIDanger

Allopurinol

CAS315-30-0EC206-250-9
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material

Allopurinol is a pharmaceutical raw material used to lower elevated uric acid levels in the blood. It is commonly supplied for the manufacturing of medications that prevent gout and certain types of kidney stones, as well as for managing hyperuricemia associated with chemotherapy.

manufacturing of active pharmaceutical ingredients for gout preventionproduction of compounds for preventing uric acid kidney stonessupply for chemotherapy-related hyperuricemia management

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

ReferenceSame Category

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CAS3159-07-7

pharmaceutical raw material

ReferenceSame Category

Bupropion hydrochloride

CAS31677-93-7

pharmaceutical raw material

ReferenceSame Category

Levomefolic acid

CAS31690-09-2

pharmaceutical raw material

ReferenceSame Category

L-(+)-methylenetetrahydrofolic acid

CAS31690-11-6

pharmaceutical raw material

Safety Reference

Toxic
Toxic
Harmful
Harmful
Danger
H301Toxic if swallowed
H317May cause an allergic skin reaction

Customs Tariff Classification

The international HS code for Allopurinol (CAS 315-30-0) is 2933.59.

HS code (international, 6-digit)

2933.59

EU CN code (8-digit)

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.

Identifiers
IUPAC Name

1,5-dihydropyrazolo[5,4-d]pyrimidin-4-one

InChIKey

OFCNXPDARWKPPY-UHFFFAOYSA-N

SMILES

C1=NNC2=C1C(=O)NC=N2

Synonyms (112)
  • 4-HPP
  • Allopurinol (JP18/USP/INN)
  • Allopurinol - EP grade
  • Allopurinol, British Pharmacopoeia (BP)
  • Allopurinol, European Pharmacopoeia (EP)
  • Allopurinol, United States Pharmacopeia (USP)
  • Allopurinolum [INN-Latin]
  • Alopurinol [INN-Spanish]
  • 1,4-d]pyrimidin-4-one
  • 4-Hydroxypyrazolopyrimidine
  • 4H-Pyrazolo[3, 1,5-dihydro-
  • ALLOPURINOL [MART.]
  • Adenock
  • Ailural
  • Ailurial
  • Allohexal;
  • Allohexan
  • Allopur
  • Allopurinol (Standard)
  • Allopurinol (Zyloprim)
  • Allopurinol CRS
  • Allopurinol RS
  • Allopurinol(I)
  • Allopurinolum
  • Allosig;
  • Allozym
  • Alopurinol
  • Aloral
  • Alositol
  • Aluline
  • Aluline 100
  • Aluline 300
  • Anoprolin
  • Anzief
  • Apurol
  • Atisuril
  • BW 56-158
  • Bloxanth
  • Cosuric
  • DUZALLO COMPONENT ALLOPURINOL
  • Dabrosin
  • Dura Al
  • Epidropal
  • Epuric
  • Gichtex
  • Hamarin 100
  • Hamarin 300
  • Hexanuret
  • Ketanrift
  • Ketobun-A
  • Ledopur
  • Lopurin
  • Milurite
  • Miniplanor
  • Monarch
  • Nektrohan
  • Pan Quimica
  • Progout
  • Riball
  • Sigapurol
  • Suspendol
  • Takanarumin
  • US9138393, Allopurinol
  • US9144538, Allopurinol
  • Urbol
  • Uricemil
  • Uricto
  • Uriprim
  • Uritas
  • Urobenyl
  • Urolit
  • Urosin
  • Urtias 100
  • Xanthione oxidase
  • Xanturat
  • Zurinol
  • Zyloprim
  • Zyloprim (TN)
  • Zyloric
  • allopurinol
  • allopurinolo
  • pyrazolo[5,4-d]pyrimidin-4-ol

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