Ethyl (4S)-2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate

Also known as: (2S)-Ethyl-4-methyl-3,5-oxazolinecarboxylate, (4S)-4-(carbethoxy)-2-methyl-2-oxazolin, (S)-Ethyl 2-methyl-4,5-dihydrooxazole-4-carboxylate, 4S-(+)-2-Methyl-4-carbethoxy-2-oxazolin, (S)-2-Methyl-4,5-dihydro-oxazole-4-carboxylic acid ethyl ester, 2-Methyl-4,5-dihydro-1,3-oxazole-4-carboxylic acid ethyl ester, Ethyl methyl oxazolinecarboxylate, Ethyl (4S)-2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate

Ethyl (4S)-2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate (CAS 61999-29-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H11NO3 and a molecular weight of 157.16700 g/mol. Key properties include a boiling point of 201.611ºC at 760 mmHg, a density of 1.21g/cm3 and a flash point of 80.125ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 61999-29-9
Jingsj CID: J-1480646-3
Molecular Formula: C₇H₁₁NO₃
Molecular Weight: 157.16700 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	201.611ºC at 760 mmHg
Density	1.21g/cm3
Flash Point	80.125ºC
Exact Mass	157.07400
PSA	47.89000
Refractive Index	1.506

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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 Ethyl (4S)-2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate?

The CAS number of Ethyl (4S)-2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate is 61999-29-9.

What are the molecular formula and molecular weight of Ethyl (4S)-2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate?

Ethyl (4S)-2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate has molecular formula C7H11NO3 and molecular weight 157.16700 g/mol.

What are the upstream and downstream products of Ethyl (4S)-2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate?

For Ethyl (4S)-2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate, Upstream Products: Ethyl acetimidate hydrochloride, Ethyl L-serinate hydrochloride, L-Serine ethyl ester; Downstream Products: Ethyl 2-methyl-4-oxazolecarboxylate, 2-Methyloxazole-4-carboxylic acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Ethyl (4S)-2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate (CAS 61999-29-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1480646-3 (accessed 2026-11-09).

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