1-Boc-D-pyroglutamic acid ethyl ester
Also known as: Ethyl (R)-1-(tert-butoxycarbonyl)-5-oxopyrrolidine-2-carboxylate, Ethyl N-(tert-butoxycarbonyl)-D-pyroglutamate, (R)-1-Boc-5-oxopyrrolidine-2-carboxylic acid ethyl ester, Ethyl Boc-D-pyroglutamate, N-Boc-D-pyroglutamic acid ethyl ester, 1-tert-Butyl 2-ethyl (2R)-5-oxopyrrolidine-1,2-dicarboxylate, Boc-D-Pyr.Oet, Boc-D-Pyr-OEt
1-Boc-D-pyroglutamic acid ethyl ester (CAS 144978-35-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H19NO5 and a molecular weight of 257.283 g/mol. Key properties include a melting point of 54.0 to 58.0 °C, a boiling point of 375.0±35.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 180.6±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 144978-35-8
- Jingsj CID
- J-1103293-2
- Molecular Formula
- C12H19NO5
- Molecular Weight
- 257.283 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 54.0 to 58.0 °C |
|---|---|
| Boiling Point | 375.0±35.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 180.6±25.9 °C |
| Exact Mass | 257.126312 |
| PSA | 72.91000 |
| LogP | 0.09 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.487 |
Customs & Trade Information
| HS Code | 2933790090 |
|---|---|
| Summary | 2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1-Boc-D-pyroglutamic acid ethyl ester?
The CAS number of 1-Boc-D-pyroglutamic acid ethyl ester is 144978-35-8.
What are the molecular formula and molecular weight of 1-Boc-D-pyroglutamic acid ethyl ester?
1-Boc-D-pyroglutamic acid ethyl ester has molecular formula C12H19NO5 and molecular weight 257.283 g/mol.
What are the upstream and downstream products of 1-Boc-D-pyroglutamic acid ethyl ester?
For 1-Boc-D-pyroglutamic acid ethyl ester, Upstream Products: Di-tert-butyl dicarbonate, Ethyl L-pyroglutamate, Triethyl orthoformate; Downstream Products: (1S,3S,5S)-tert-Butyl 3-carbamoyl-2-azabicyclo[3.1.0]hexane-2-carboxylate, (2S,5S)-1-(tert-butoxycarbonyl)-5-methylpyrrolidine-2-carboxylic acid, (1S,3S,5S)-2-azabicyclo[3.1.0]hexane-3-carboxylic 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. "1-Boc-D-pyroglutamic acid ethyl ester (CAS 144978-35-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1103293-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.