L-Methionine methyl ester hydrochloride
Also known as: H-Met-OMe·HCl, Methyl L-methionate hydrochloride, (S)-Methyl 2-amino-4-(methylthio)butanoate hydrochloride, Methionine methyl ester hydrochloride, L-Methioninemethylesterhydrochloride, MFCD00012491
L-Methionine methyl ester hydrochloride (CAS 2491-18-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H14ClNO2S and a molecular weight of 199.7 g/mol. Key properties include a melting point of 151-153 °C(lit.), a boiling point of 277.6ºC at 760 mmHg, a density of 1.094g/cm3 and a flash point of 121.7ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 1 supplier, from 1.64 to 1,580.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 2491-18-1
- Jingsj CID
- J-44363-0
- Molecular Formula
- C6H14ClNO2S
- Molecular Weight
- 199.7 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 96% 500g | ¥820.00 | $0.25 /gBest ¥1.64/g CNY | CN China MOQ 500g | |
Made to Order | 96% 100g | ¥170.00 | $0.25 /g ¥1.70/g CNY | CN China MOQ 100g | |
Made to Order | 96% 1kg | ¥1,580.00 | $236.44 /kg ¥1,580.00/kg CNY | CN China MOQ 1kg |
Physicochemical Properties
| Melting Point | 151-153 °C(lit.) |
|---|---|
| Boiling Point | 277.6ºC at 760 mmHg |
| Density | 1.094g/cm3 |
| Flash Point | 121.7ºC |
| Exact Mass | 199.043381 |
| PSA | 77.62000 |
| LogP | 1.74210 |
| Vapor Pressure | 0.0388mmHg at 25°C |
| Refractive Index | 26 ° (C=1, H2O) |
| SMILES | COC(=O)[C@H](CCSC)N.Cl |
| InChIKey | MEVUPUNLVKELNV-JEDNCBNOSA-N |
| InChI | 1S/C6H13NO2S.ClH/c1-9-6(8)5(7)3-4-10-2;/h5H,3-4,7H2,1-2H3;1H/t5-;/m0./s1 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of L-Methionine methyl ester hydrochloride?
The CAS number of L-Methionine methyl ester hydrochloride is 2491-18-1.
What are the molecular formula and molecular weight of L-Methionine methyl ester hydrochloride?
L-Methionine methyl ester hydrochloride has molecular formula C6H14ClNO2S and molecular weight 199.7 g/mol.
Which suppliers offer L-Methionine methyl ester hydrochloride?
1 supplier(s) listed; reference unit price ¥1.64–1580.00 /g.
Is L-Methionine methyl ester hydrochloride hazardous?
L-Methionine methyl ester hydrochloride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "L-Methionine methyl ester hydrochloride (CAS 2491-18-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44363-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.