3,4-Dehydro-L-proline
3,4-脱氢-L-脯氨酸
Also known as: (S)-2,5-Dihydro-1H-pyrrole-2-carboxylic acid, (S)-3-Pyrroline-2-carboxylic acid, 3,4-Didehydro-L-proline, L-3,4-Dehydroproline, H-3,4-Dehydro-Pro-OH, (2S)-2,5-dihydro-1H-pyrrole-2-carboxylic acid, 3,4-Dehydroproline, H-3,4-DEHYDRO-PRO-OH
3,4-Dehydro-L-proline (CAS 4043-88-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H7NO2 and a molecular weight of 113.11 g/mol. It is also known as (S)-2,5-Dihydro-1H-pyrrole-2-carboxylic acid, (S)-3-Pyrroline-2-carboxylic acid and 3,4-Didehydro-L-proline. Key properties include a melting point of 239-241ºC (dec.), a boiling point of 279.3ºC at 760mmHg, a density of 1.252g/cm3 and a flash point of 122.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4043-88-3
- Jingsj CID
- J-17366-3
- Molecular Formula
- C5H7NO2
- Chinese Name
- 3,4-脱氢-L-脯氨酸
- Molecular Weight
- 113.11 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 239-241ºC (dec.) |
|---|---|
| Boiling Point | 279.3ºC at 760mmHg |
| Density | 1.252g/cm3 |
| Flash Point | 122.7ºC |
Frequently Asked Questions
What is the CAS number of 3,4-Dehydro-L-proline?
The CAS number of 3,4-Dehydro-L-proline is 4043-88-3.
What are the molecular formula and molecular weight of 3,4-Dehydro-L-proline?
3,4-Dehydro-L-proline has molecular formula C5H7NO2 and molecular weight 113.11 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Dehydro-L-proline (CAS 4043-88-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17366-3 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.