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tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate

Also known as: N-Boc-4-piperidineacetaldehyde, 1-Boc-4-(2-oxo-ethyl)piperidine, tert-butyl 4-(formylmethyl)piperidine-1-carboxylate, 2-(N-Boc-4-piperidinyl)acetaldehyde, 2-methyl-2-propanyl 4-(2-oxoethyl)-1-piperidinecarboxylate, 4-(2-oxoethyl)piperidine-1-carboxylic acid tert-butyl ester, 1-(tert-butyloxycarbonyl)-piperidine-4-acetaldehyde

tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate (CAS 142374-19-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H21NO3 and a molecular weight of 227.300 g/mol. Key properties include a melting point of 38-42ºC, a boiling point of 318.1±15.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 146.2±20.4 °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.
142374-19-4
Jingsj CID
J-1477721-0
Molecular Formula
C12H21NO3
Molecular Weight
227.300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point38-42ºC
Boiling Point318.1±15.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point146.2±20.4 °C
Exact Mass227.152145
PSA46.61000
LogP1.45
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.467

GHS Safety & Compliance

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

Frequently Asked Questions

What is the CAS number of tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate?

The CAS number of tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate is 142374-19-4.

What are the molecular formula and molecular weight of tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate?

tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate has molecular formula C12H21NO3 and molecular weight 227.300 g/mol.

Is tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate hazardous?

tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate 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 tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate?

For tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate, Upstream Products: tert-Butyl 4-(2-hydroxyethyl)piperidine-1-carboxylate, Oxalyl chloride, tert-Butyl 4-(2-ethoxy-2-oxoethyl)piperidine-1-carboxylate; Downstream Products: tert-butyl 4-[(E)-4-methoxy-4-oxobut-2-en-1-yl]piperidine-1-carboxylate, tert-butyl 4-(1-bromo-2-oxoethyl)piperidine-1-carboxylate, tert-butyl 4-(2-(methylamino)ethyl)piperidine-1-carboxylate.

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

Last updated:

How to cite: Jingsj. "tert-butyl 4-(2-oxoethyl)piperidine-1-carboxylate (CAS 142374-19-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1477721-0 (accessed 2026-11-09).

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