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Methyl 3-aminocrotonate

Also known as: Methyl 3-amino-2-butenoate, Methyl (2E)-3-amino-2-butenoate, 3-amino-2-butenoic acid methyl ester, methyl 3-aminobut-2-enoate, 3-aminobut-2-enoic acid methyl ester, MFCD06659463, EINECS 238-056-5, Methyl 3-aminocroton, 2-Butenoic acid, 3-amino-, methyl ester, 3-aminocrotonic acid methyl ester, Aminocrotonic acid methyl ester

Methyl 3-aminocrotonate (CAS 14205-39-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H9NO2 and a molecular weight of 115.131 g/mol. Key properties include a melting point of 81-83 °C(lit.), a boiling point of 194.1±13.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 65.3±17.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
14205-39-1
Jingsj CID
J-992430-5
Molecular Formula
C5H9NO2
Molecular Weight
115.131 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point81-83 °C(lit.)
Boiling Point194.1±13.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point65.3±17.4 °C
Exact Mass115.063332
PSA52.32000
LogP-0.14
Vapor Pressure0.4±0.4 mmHg at 25°C
Refractive Index1.457
Additional Propertyinsoluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H332 — Harmful if inhaled

Customs & Trade Information

HS Code2922499990
SummaryHS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Methyl 3-aminocrotonate?

The CAS number of Methyl 3-aminocrotonate is 14205-39-1.

What are the molecular formula and molecular weight of Methyl 3-aminocrotonate?

Methyl 3-aminocrotonate has molecular formula C5H9NO2 and molecular weight 115.131 g/mol.

Is Methyl 3-aminocrotonate hazardous?

Methyl 3-aminocrotonate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H332 — Harmful if inhaled.

What are the upstream and downstream products of Methyl 3-aminocrotonate?

For Methyl 3-aminocrotonate, Upstream Products: Methyl acetoacetate, Ammonia; Downstream Products: Nitrendipine, m-Nifedipine, methyl 4-methyl-2-phenyl-1,3-oxazole-5-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. "Methyl 3-aminocrotonate (CAS 14205-39-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-992430-5 (accessed 2026-11-09).

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