C6H3Cl2N3
188.01 g/mol
Pharmaceutical IntermediateDanger
2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine
CAS90213-66-4EC618-507-6
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine is a chemical compound used as a pharmaceutical intermediate. It features a fused bicyclic heterocyclic structure with halogen substituents, commonly employed in the synthesis of active pharmaceutical ingredients.
pharmaceutical intermediatechemical synthesis building block
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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Referencesame scaffold
2-Amino-4-chloropyrrolo[2,3-d]pyrimidine
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Referencesame scaffold
4-Chloropyrrolo[2,3-d]pyrimidine
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pharmaceutical intermediate
Referencesame scaffold
4-Chloro-7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidine
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Referencesame scaffold
4-Methyl-7H-pyrrolo[2,3-d]pyrimidine
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research compound
Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine (CAS 90213-66-4) 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
2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine
InChIKey
GHXBPCSSQOKKGB-UHFFFAOYSA-N
SMILES
C1=CNC2=C1C(=NC(=N2)Cl)Cl
Synonyms (9)
- 2,6-Dichloro-7-deazapurine
- Tofacitinib Impurity 08
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