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Methyl 5-chloro-5-oxopentanoate

Also known as: Methyl 4-(chloroformyl)butyrate, Methyl glutaryl chloride, Glutaric acid monomethyl ester chloride, 5-Chloro-5-oxopentanoic acid methyl ester, 4-Carbomethoxybutyryl chloride, Methyl 5-chloro-5-oxovalerate, CARBOMETHOXYL BUTYRYL CHLORIDE, Methyl 4-(chlorocarbonyl)butanoate, 4-(Methoxycarbonyl)butyryl chloride, 5-Chloro-5-oxopentanoic acid methyl ester

Methyl 5-chloro-5-oxopentanoate (CAS 1501-26-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H9ClO3 and a molecular weight of 164.587 g/mol. Key properties include a boiling point of 224.0±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 82.2±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1501-26-4
Jingsj CID
J-29688-8
Molecular Formula
C6H9ClO3
Molecular Weight
164.587 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point224.0±0.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point82.2±0.0 °C
Exact Mass164.024017
PSA43.37000
LogP0.94
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.436
Additional Propertyreacts

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2918300090
Summary2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Methyl 5-chloro-5-oxopentanoate?

The CAS number of Methyl 5-chloro-5-oxopentanoate is 1501-26-4.

What are the molecular formula and molecular weight of Methyl 5-chloro-5-oxopentanoate?

Methyl 5-chloro-5-oxopentanoate has molecular formula C6H9ClO3 and molecular weight 164.587 g/mol.

Is Methyl 5-chloro-5-oxopentanoate hazardous?

Methyl 5-chloro-5-oxopentanoate has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Methyl 5-chloro-5-oxopentanoate?

For Methyl 5-chloro-5-oxopentanoate, Upstream Products: Monomethyl glutarate, Glutaric anhydride, Dimethyl glutarate; Downstream Products: Cyclohexanepentanoic acid, Bendamustine hydrochloride, 1,3-Cyclohexanedione.

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

Last updated:

How to cite: Jingsj. "Methyl 5-chloro-5-oxopentanoate (CAS 1501-26-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29688-8 (accessed 2026-11-09).

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