(S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic acid ethyl ester
Also known as: 1-tert-butyl 2-ethyl (2S)-2,3-dihydro-1H-pyrrole-1,2-dicarboxylate, Ethyl N-Boc-L-proline-4-ene, Ethyl N-Boc-L-proline-4-ene, (S)-2,3-dihydro-pyrrole-1,2-dicarboxylic acid 1-tert-butyl ester 2-ethyl ester, Saxagliptin Intermediate 1, PYR230
(S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic acid ethyl ester (CAS 178172-26-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H19NO4 and a molecular weight of 241.284 g/mol. Key properties include a boiling point of 315.6±42.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 144.7±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 178172-26-4
- Jingsj CID
- J-1494196-9
- Molecular Formula
- C12H19NO4
- Molecular Weight
- 241.284 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 315.6±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 144.7±27.9 °C |
| Exact Mass | 241.131409 |
| PSA | 55.84000 |
| LogP | 1.48 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.490 |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 (S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic acid ethyl ester?
The CAS number of (S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic acid ethyl ester is 178172-26-4.
What are the molecular formula and molecular weight of (S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic acid ethyl ester?
(S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic acid ethyl ester has molecular formula C12H19NO4 and molecular weight 241.284 g/mol.
What are the upstream and downstream products of (S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic acid ethyl ester?
For (S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic acid ethyl ester, Upstream Products: 1-Boc-D-pyroglutamic acid ethyl ester, (2S)-1-tert-Butyl 2-ethyl 5-methoxypyrrolidine-1,2-dicarboxylate, Di-tert-butyl dicarbonate; Downstream Products: (1S,3S,5S)-tert-Butyl 3-carbamoyl-2-azabicyclo[3.1.0]hexane-2-carboxylate, (1S,3S,5S)-2-azabicyclo[3.1.0]hexane-3-carboxylic acid, tert-Butyl N-[(1S)-2-[(1S,3S,5S)-3-carbamoyl-2-azabicyclo[3.1.0]hexan-2-yl]-1-(3-hydroxyadamantan-1-yl)-2-oxoethyl]carbamate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic acid ethyl ester (CAS 178172-26-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494196-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.