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4-Chloro-7H-pyrrolo[2,3-d]pyrimidine

Also known as: 4-Chloro-1H-pyrrolo[2,3-d]pyrimidine, 4-Chloropyrrolo[2,3-d]pyrimidine, 6-Chloro-7-deazapurine, 6-Chloro-7-deazapurin, Tofacitinib Impurity Q, MFCD01686865, Nsc 64952

4-Chloro-7H-pyrrolo[2,3-d]pyrimidine (CAS 3680-69-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4ClN3 and a molecular weight of 153.57 g/mol. Key properties include a melting point of 183-184°C, a boiling point of 325.9ºC at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 180.7ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.

CAS No.
3680-69-1
Jingsj CID
J-23279-1
Molecular Formula
C6H4ClN3
Molecular Weight
153.57 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point183-184°C
Boiling Point325.9ºC at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point180.7ºC
Exact Mass153.009369
PSA41.57000
LogP1.03
Refractive Index1.720

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine?

The CAS number of 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine is 3680-69-1.

What are the molecular formula and molecular weight of 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine?

4-Chloro-7H-pyrrolo[2,3-d]pyrimidine has molecular formula C6H4ClN3 and molecular weight 153.57 g/mol.

Which suppliers offer 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine?

1 supplier(s) listed; request a quote for pricing.

Is 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine hazardous?

4-Chloro-7H-pyrrolo[2,3-d]pyrimidine has GHS signal word Danger and hazard statements H301 — Toxic if swallowed.

What are the upstream and downstream products of 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine?

For 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine, Upstream Products: Pyrrolo[2,3-d]pyrimidin-4-ol, Ethyl 2-cyano-4,4-diethoxybutyrate, 6-amino-5-(2,2-diethoxyethyl)-2-sulfanylidene-1H-pyrimidin-4-one; Downstream Products: 4-iodo-7H-pyrrolo[2,3-d]pyrimidine, 4-Chloro-6-methyl-7H-pyrrolo[2,3-d]pyrimidine, 4-Chloro-5H-pyrrolo[2,3-d]pyrimidin-6(7H)-one.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4-Chloro-7H-pyrrolo[2,3-d]pyrimidine (CAS 3680-69-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23279-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.