Methyl L-prolinate hydrochloride
- CAS No.
- 2133-40-6
- Chemical Name:
- Methyl L-prolinate hydrochloride
- Synonyms
- L-PROLINE METHYL ESTER HYDROCHLORIDE;PROLINE METHYL ESTER HYDROCHLORIDE;L-Proline Methyl Ester Monohydrochloride;L-Proline methyleester hydrochloride;Methyl L-prolinate hydrochloride USP/EP/BP;L-Proline methyl ester hydrochloride≥ 99% (HPLC);ine methyL;H-PRO-OME HCL;L-Pro-Ome.HCl;H-Pro-OMel.HCl
- CBNumber:
- CB3116045
- Molecular Formula:
- C6H12ClNO2
- Molecular Weight:
- 165.62
- MDL Number:
- MFCD00012708
- MOL File:
- 2133-40-6.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| L-Proline methyl ester hydrochloride 98% | 287067 | 1g | $40 |
| L-Proline methyl ester hydrochloride 98% | 287067 | 5g | $111 |
| L-Proline Methyl Ester Hydrochloride >98.0%(N) | P0342 | 5g | $49 |
| L-Proline Methyl Ester Hydrochloride >98.0%(N) | P0342 | 25g | $180 |
| L-Proline methyl ester hydrochloride 98% | 287067 | 25g | $140 |
| More product size | |||
| Melting point | 69-71 °C(lit.) |
|---|---|
| alpha | -33 º (c=1, H2O) |
| Boiling point | 55 °C / 11mmHg |
| Density | 1.1426 (rough estimate) |
| refractive index | -31.5 ° (C=1, H2O) |
| storage temp. | Inert atmosphere,2-8°C |
| solubility | Chloroform, Methanol (Slightly), Water (slightly) |
| form | Crystalline Powder, Crystals, and/or Chunks |
| color | White |
| optical activity | [α]20/D 31°, c = 0.5 in H2O |
| Sensitive | Hygroscopic |
| BRN | 3596045 |
| Stability | Hygroscopic |
| Major Application | peptide synthesis |
| InChI | 1S/C6H11NO2.ClH/c1-9-6(8)5-3-2-4-7-5;/h5,7H,2-4H2,1H3;1H/t5-;/m0./s1 |
| InChIKey | HQEIPVHJHZTMDP-JEDNCBNOSA-N |
| SMILES | Cl[H].[H][C@]1(CCCN1)C(=O)OC |
| CAS DataBase Reference | 2133-40-6(CAS DataBase Reference) |
| FDA UNII | 7LWL7P890M |
| UNSPSC Code | 12352209 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319 | |||||||||
| Precautionary statements | P264-P280a-P305+P351+P338-P321-P332+P313-P337+P313 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/38 | |||||||||
| Safety Statements | 26-37/39 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 3-8-10-21 | |||||||||
| Hazard Note | Harmful | |||||||||
| HS Code | 29189900 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
Methyl L-prolinate hydrochloride price More Price(43)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 287067 | L-Proline methyl ester hydrochloride 98% | 2133-40-6 | 1g | $40 | 2026-03-19 | Buy |
| Sigma-Aldrich | 287067 | L-Proline methyl ester hydrochloride 98% | 2133-40-6 | 5g | $111 | 2026-03-19 | Buy |
| TCI Chemical | P0342 | L-Proline Methyl Ester Hydrochloride >98.0%(N) | 2133-40-6 | 5g | $49 | 2026-03-19 | Buy |
| TCI Chemical | P0342 | L-Proline Methyl Ester Hydrochloride >98.0%(N) | 2133-40-6 | 25g | $180 | 2026-03-19 | Buy |
| Sigma-Aldrich | 287067 | L-Proline methyl ester hydrochloride 98% | 2133-40-6 | 25g | $140 | 2026-03-19 | Buy |
Methyl L-prolinate hydrochloride Chemical Properties,Uses,Production
Chemical Properties
Crystalline
Uses
L-Proline Methyl Ester Hydrochloride (cas# 2133-40-6) is a compound useful in organic synthesis.
reaction suitability
reaction type: solution phase peptide synthesis
Synthesis
67-56-1
147-85-3
2133-40-6
The general procedure for the synthesis of L-proline methyl ester hydrochloride from methanol and L-proline was as follows: first, methyl (S)-pyrrolidine-2-carboxylate was prepared by reacting (S)-proline (10.2 g, 88.6 mmol) with SOCl (11.6 g, 7.10 mL, 97.5 mmol) in refluxed methanol (60 mL) for 29 hours. Upon completion of the reaction, excess solvent and SOCl were removed by distillation under reduced pressure to afford the proline ester as a gray oil (15.9 g, quantitative yield). Subsequently, 2-fluoro-1-nitrobenzene (6.92 g, 5.18 mL, 49.0 mmol) was reacted with methyl (S)-pyrrolidine-2-carboxylate (7.55 g, 45.6 mmol) prepared as described above according to the literature method to afford bright yellow crystals of L-prolinylmethyl ester hydrochloride (12.0 g, quantitative yield), which was used without further purification for subsequent The product can be used for subsequent experiments without further purification.
References
[1] Heterocycles, 1986, vol. 24, # 4, p. 1045 - 1060
[2] Bulletin des Societes Chimiques Belges, 1994, vol. 103, # 5-6, p. 201 - 206
[3] Journal of the Chemical Society - Perkin Transactions 1, 1998, # 22, p. 3767 - 3775
[4] European Journal of Organic Chemistry, 2002, # 19, p. 3304 - 3314
[5] Tetrahedron, 2008, vol. 64, # 42, p. 9992 - 9998
Methyl L-prolinate hydrochloride Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Sichuan HongRi Pharma-Tech Co.,Ltd | +8618382028708 | ni@enlaibio.com | China | 1098 | 58 |
| Capot Chemical Co.,Ltd. | +86-(0)57185586718; +8613336195806 | sales@capot.com | China | 29640 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21592 | 55 |
| Shanghai Time Chemicals CO., Ltd. | +86-021-57951555 +8617317452075 | jack.li@time-chemicals.com | China | 1803 | 55 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 | product@chemlin.com.cn | CHINA | 3009 | 60 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29822 | 58 |
| Accela ChemBio Inc. | +1-858-6993322 | info@accelachem.com | United States | 21193 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8615060885618 | sales@amoychem.com | China | 6369 | 58 |
| Shanghai Longyu Biotechnology Co., Ltd. | +8619521488211 | info@longyupharma.com | China | 2542 | 58 |
View Lastest Price from Methyl L-prolinate hydrochloride manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-04-17 | Methyl L-prolinate hydrochloride
2133-40-6
|
US $0.00 / Kg/Bag | 100g | 98.5%min | 100kgs | WUHAN FORTUNA CHEMICAL CO., LTD | |
![]() |
2026-04-17 | L-Pro-Ome.HCl
2133-40-6
|
US $0.00-0.00 / kg | 1kg | 98% | 1T+ | Sichuan HongRi Pharma-Tech Co.,Ltd | |
![]() |
2025-04-04 | Methyl L-prolinate hydrochloride
2133-40-6
|
US $0.00-0.00 / kg | 1kg | 98% | 1Ton | Henan Aochuang Chemical Co.,Ltd.
|
-

- Methyl L-prolinate hydrochloride
2133-40-6
- US $0.00 / Kg/Bag
- 98.5%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-

- L-Pro-Ome.HCl
2133-40-6
- US $0.00-0.00 / kg
- 98%
- Sichuan HongRi Pharma-Tech Co.,Ltd
-

- Methyl L-prolinate hydrochloride
2133-40-6
- US $0.00-0.00 / kg
- 98%
- Henan Aochuang Chemical Co.,Ltd.






