(S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid
- CAS No.
- 74761-42-5
- Chemical Name:
- (S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid
- Synonyms
- (methoxycarbonyl)-L-valine;N-(Methoxycarbonyl)-L-valine;MOC-L-Valine;N-(methoxycarbonyl)-Valine;MOC-L;MOC-Val;MOC-L-Val;Moc-Val-OH;Moc-L-Val-OH;N-Moc-L-valine
- CBNumber:
- CB62593005
- Molecular Formula:
- C7H13NO4
- Molecular Weight:
- 175.18
- MDL Number:
- MFCD12795357
- MOL File:
- 74761-42-5.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 109.0 to 113.0 °C |
|---|---|
| Boiling point | 315.9±25.0 °C(Predicted) |
| Density | 1.154±0.06 g/cm3(Predicted) |
| storage temp. | Sealed in dry,Room Temperature |
| form | powder to crystal |
| pka | 4.44±0.10(Predicted) |
| color | White to Almost white |
| optical activity | Consistent with structure |
| InChI | InChI=1S/C7H13NO4/c1-4(2)5(6(9)10)8-7(11)12-3/h4-5H,1-3H3,(H,8,11)(H,9,10)/t5-/m0/s1 |
| InChIKey | CEFVHPDFGLDQKU-YFKPBYRVSA-N |
| SMILES | C(O)(=O)[C@H](C(C)C)NC(OC)=O |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P280-P301+P312-P302+P352-P305+P351+P338 |
| HS Code | 2924297099 |
| REACH Registrations | Active |
(S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid price More Price(50)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | M2857 | N-(Methoxycarbonyl)-L-valine >98.0%(HPLC)(T) | 74761-42-5 | 5g | $35 | 2026-04-30 | Buy |
| TCI Chemical | M2857 | N-(Methoxycarbonyl)-L-valine >98.0%(HPLC)(T) | 74761-42-5 | 25g | $60 | 2026-04-30 | Buy |
| Usbiological | 283164 | S-2-((Methoxycarbonyl)amino)-3-methylbutanoic acid Asreported | 74761-42-5 | 50g | $333 | 2026-06-03 | Buy |
| Usbiological | 283164 | S-2-((Methoxycarbonyl)amino)-3-methylbutanoic acid Asreported | 74761-42-5 | 100g | $460 | 2026-06-03 | Buy |
| Usbiological | 283164 | S-2-((Methoxycarbonyl)amino)-3-methylbutanoic acid Asreported | 74761-42-5 | 250g | $672 | 2026-06-03 | Buy |
(S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid Chemical Properties, Uses, Production
Uses
(S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid can be used as Ledipasvir Intermediate, mainly used in laboratory R&D process and chemical production process.
Synthesis

Na2CO3 (1.83 g, 17.2 mmol) was added to an aq solution of NaOH (33 mL of 1 M/H2O, 33 mmol) and L-valine (3.900 g, 33.29 mmol) and the resulting solution was cooled with ice-water bath. Methyl chloroformate (2.8 mL, 36.1 mmol) was added dropwise, the cooling bath was removed and the reaction mixture was stirred at ambient temperature for 3.25 h. The reaction mixture was washed with ether (3x17 mL), and the aqueous phase was cooled with ice-water bath and acidified with conc HCl to a pH of 1-2, and extracted with CH2Cl2 (3x17 mL). The organic phase was dried (anhyd MgSO4), filtered, and concentrated in vacuo. Cap-1 as a white solid (5.00 g, 86%).
References
[1] Patent: WO2013/123092, 2013, A1. Location in patent: Paragraph 0111
(S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Ark Pharm, Inc. | 847-367-3680 | sales@arkpharminc.com | United States | 1669 | 56 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| GL Biochem (Shanghai) Ltd | 21-61263452 13641803416 | ymbetter@glbiochem.com | China | 9981 | 64 |
| JinYan Chemicals(ShangHai) Co.,Ltd. | 13817811078 | sales@jingyan-chemical.com | China | 9963 | 60 |
| Jia Xing Isenchem Co.,Ltd | 0573-85285100 18627885956 | isenchem@163.com | China | 9389 | 66 |
| Shanghai Chiral Chemicals Inc. | 021-37285021 13472570865 | tym7xi@aliyun.com | China | 299 | 64 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Synches Co., Ltd. | 021-53292253 | biz@synches.com | China | 199 | 64 |
| Changzhou Joyous Chemical Co., Ltd. | 0519-85607258 | sales@joyouschem.com | China | 292 | 60 |
View Latest Price from (S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-09-11 | MOC-L-Valine
74761-42-5
|
1KG | 98.5%min | 10 tons | WUHAN FORTUNA CHEMICAL CO., LTD | ||
![]() |
2026-03-20 | (S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid
74761-42-5
|
$10.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
![]() |
2025-04-04 | (S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid
74761-42-5
|
1kg | 98% | 1Ton | Henan Aochuang Chemical Co.,Ltd. |
-

- MOC-L-Valine
74761-42-5
- $0.00
- 98.5%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-

- (S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid
74761-42-5
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-

- (S)-2-((Methoxycarbonyl)aMino)-3-Methylbutanoic acid
74761-42-5
- 98%
- Henan Aochuang Chemical Co.,Ltd.
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