3,4-Dehydro-DL-proline
Also known as: 2,5-Dihydro-1H-pyrrole-2-carboxylic acid, (±)-2,5-Dihydro-1H-pyrrole-2-carboxylic acid, (±)-3-Pyrroline-2-carboxylic acid, 3,4-Didehydro-DL-proline, DL-3,4-Dehydroproline, H-3,4-Dehydro-DL-Pro-OH, H-DL-DELTAPRO-OH, rac-(2R*)-3-Pyrroline-2-carboxylic acid, (RS)-3,4-Dehydro-pyrrolidine-2-carboxylic acid
3,4-Dehydro-DL-proline (CAS 3395-35-5) 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 113.115 g/mol. Key properties include a melting point of 245ºC (dec.)(lit.), a boiling point of 279.3±40.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 122.7±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3395-35-5
- Jingsj CID
- J-1958850-2
- Molecular Formula
- C5H7NO2
- Molecular Weight
- 113.115 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 245ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 279.3±40.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 122.7±27.3 °C |
| Exact Mass | 113.047676 |
| PSA | 49.33000 |
| LogP | 0.10 |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.521 |
Activity & Biological Data
| Additional Information | [1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-1144. |
|---|
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 3,4-Dehydro-DL-proline?
The CAS number of 3,4-Dehydro-DL-proline is 3395-35-5.
What are the molecular formula and molecular weight of 3,4-Dehydro-DL-proline?
3,4-Dehydro-DL-proline has molecular formula C5H7NO2 and molecular weight 113.115 g/mol.
What are the upstream and downstream products of 3,4-Dehydro-DL-proline?
For 3,4-Dehydro-DL-proline, Upstream Products: Pyrrole-2-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. "3,4-Dehydro-DL-proline (CAS 3395-35-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1958850-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.