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4-Ketopimelic acid

Also known as: 4-Oxoheptanedioic acid, 4-Oxopimelic acid, gamma-Ketopimelic acid, Heptanedioic acid, 4-oxo-, NSC 16642, MFCD00002798, EINECS 207-941-8

4-Ketopimelic acid (CAS 502-50-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H10O5 and a molecular weight of 174.151 g/mol. Key properties include a melting point of 142-144ºC(lit.), a boiling point of 420.4±20.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 222.2±18.3 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
502-50-1
Jingsj CID
J-1496239-1
Molecular Formula
C7H10O5
Molecular Weight
174.151 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point142-144ºC(lit.)
Boiling Point420.4±20.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point222.2±18.3 °C
Exact Mass174.052826
PSA91.67000
LogP-0.82
Vapor Pressure0.0±2.1 mmHg at 25°C
Refractive Index1.489

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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 4-Ketopimelic acid?

The CAS number of 4-Ketopimelic acid is 502-50-1.

What are the molecular formula and molecular weight of 4-Ketopimelic acid?

4-Ketopimelic acid has molecular formula C7H10O5 and molecular weight 174.151 g/mol.

Is 4-Ketopimelic acid hazardous?

4-Ketopimelic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 4-Ketopimelic acid?

For 4-Ketopimelic acid, Upstream Products: 1,6-Dioxaspiro[4.4]nonane-2,7-dione, Diethyl 4-oxoheptanedioate, Chelidonic acid; Downstream Products: Diethyl 4-oxoheptanedioate, Monoethyl 4-oxoheptanedioate, 3-(5-Oxopyrrolidin-2-yl)propanoic acid.

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-Ketopimelic acid (CAS 502-50-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1496239-1 (accessed 2026-11-09).

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