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4,6-Dichloro-5-pyrimidinecarbaldehyde

Also known as: 4,6-Dichloropyrimidine-5-carbaldehyde, 4,6-Dichloro-5-formylpyrimidine, 4,6-Dichloropyrimidine-5-carboxaldehyde, 5-Pyrimidinecarbaldehyde, 4,6-dichloro-, MFCD02257701

4,6-Dichloro-5-pyrimidinecarbaldehyde (CAS 5305-40-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2Cl2N2O and a molecular weight of 176.988 g/mol. Key properties include a melting point of 70-72, a boiling point of 286.1±35.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 126.8±25.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5305-40-8
Jingsj CID
J-1517197-8
Molecular Formula
C5H2Cl2N2O
Molecular Weight
176.988 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point70-72
Boiling Point286.1±35.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point126.8±25.9 °C
Exact Mass175.954422
PSA42.85000
LogP1.44
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.617
Storage Conditions2-8°C

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code2933599090
Summary2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. 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 4,6-Dichloro-5-pyrimidinecarbaldehyde?

The CAS number of 4,6-Dichloro-5-pyrimidinecarbaldehyde is 5305-40-8.

What are the molecular formula and molecular weight of 4,6-Dichloro-5-pyrimidinecarbaldehyde?

4,6-Dichloro-5-pyrimidinecarbaldehyde has molecular formula C5H2Cl2N2O and molecular weight 176.988 g/mol.

Is 4,6-Dichloro-5-pyrimidinecarbaldehyde hazardous?

4,6-Dichloro-5-pyrimidinecarbaldehyde has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of 4,6-Dichloro-5-pyrimidinecarbaldehyde?

For 4,6-Dichloro-5-pyrimidinecarbaldehyde, Upstream Products: 4,6-Dihydroxypyrimidine, N,N-Dimethylformamide, 4,6-Dihydroxy-5-formylpyrimidine; Downstream Products: 4-CHLORO-6-PIPERIDINO-5-PYRIMIDINECARBALDEHYDE, 4-Chloro-1-(p-tolyl)-1H-pyrazolo[3,4-d]pyrimidine, 4-Chloro-1H-pyrazolo[3,4-d]pyrimidine.

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

Last updated:

How to cite: Jingsj. "4,6-Dichloro-5-pyrimidinecarbaldehyde (CAS 5305-40-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1517197-8 (accessed 2026-11-09).

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