(S)-4-Isopropyloxazolidine-2,5-dione
- CAS No.
- 24601-74-9
- Chemical Name:
- (S)-4-Isopropyloxazolidine-2,5-dione
- Synonyms
- Val-NCA;L-Val-NCA;H-Val-NCA;Pramoxine Impurity 8;Valine N-Carboxyanhydride;L-Valine-N-carboxyanhydride;N-Carboxy-L-valine Anhydride;L-4-Isopropyl-2,5-oxazolidinedione;(S)-4-Isopropyloxazolidine-2,5-dione;(4S)-4-isopropyloxazolidine-2,5-dione
- CBNumber:
- CB5166493
- Molecular Formula:
- C6H9NO3
- Molecular Weight:
- 143.14
- MDL Number:
- MFCD03411320
- MOL File:
- 24601-74-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() ![]() GHS07,GHS05 |
|---|---|
| Signal word | Danger |
| Hazard statements | H315-H318-H335 |
| Precautionary statements | P280-P305+P351+P338-P310-P264-P280-P302+P352-P321-P332+P313-P362 |
| Safety Statements | 22-24/25 |
| REACH Registrations | Active |
(S)-4-Isopropyloxazolidine-2,5-dione price
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Usbiological | 022701 | L-Valine N-Carboxyanhydride | 24601-74-9 | 100mg | $425 | 2026-06-03 | Buy |
| Matrix Scientific | 209593 | (4S)-4-Isopropyloxazolidine-2,5-dione | 24601-74-9 | 1.00g | $454 | 2026-05-18 | Buy |
| Matrix Scientific | 209593 | (4S)-4-Isopropyloxazolidine-2,5-dione | 24601-74-9 | 5.00g | $1361 | 2026-05-18 | Buy |
| aablocks | AA002OMM | (S)-4-Isopropyloxazolidine-2,5-dione 95% | 24601-74-9 | 250mg | $12 | 2026-05-28 | Buy |
| aablocks | AA002OMM | (S)-4-Isopropyloxazolidine-2,5-dione 95% | 24601-74-9 | 1g | $21 | 2026-05-28 | Buy |
(S)-4-Isopropyloxazolidine-2,5-dione Chemical Properties, Uses, Production
Chemical Properties
White Solid
Uses
L-Valine N-Carboxyanhydride (cas# 24601-74-9) is a compound useful in organic synthesis.
Preparation
To a stirred suspension of l-valine (46.8 g, 0.4 mol) in dry THF (400 mL) was slowly added a solution of phosgene (0.8 mol)in toluene (stock solution ca. 5 m). In the closed vessel (Author’s remark: It is better to use a reflux condenser cooled to at least -15 ℃ or a dry-ice reflux condenser under ambient pressure), the mixture was stirred at 45 ℃ for 7 h in order to obtain a clear solution. The solvent was then evaporated in vacuo at room temperature. The residue was redissolved in dry THF and this solution was concentrated to dryness. The crystalline residue was dried over CaCl2 in vacuo; yield 57.0 g (quantitative).
(S)-4-Isopropyloxazolidine-2,5-dione Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Wuhan Chemwish Technology Co., Ltd | 86-027-67849912 | sales@chemwish.com | China | 35884 | 56 |
| Shanghai Sinch Parmaceuticals Tech. Co. Ltd. | +86-21-54098501 | sales@sinch.com.cn | China | 11592 | 64 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Chemsky(shanghai)International Co.,Ltd. | 021-50135380 | shchemsky@sina.com | China | 32273 | 50 |
| Tianjin Derchemist Science & Technology Co., Ltd. | 22-58627059 13920586291 | zdcomcon@126.com | China | 4094 | 50 |
| Chengdu Forest Science and Technology Development Co., Ltd. | 18030648795 18030648795 | sales@cdforestchem.com | China | 1998 | 58 |
| Shanghai T&W Pharmaceutical Co., Ltd. | +86 21 61551611 | China | 9874 | 58 | |
| Bide Pharmatech Ltd. | 400-164-7117 18317119277 | product02@bidepharm.com | China | 40000 | 60 |
View Latest Price from (S)-4-Isopropyloxazolidine-2,5-dione manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-09-16 | L-Val-NCA
24601-74-9
|
1kg | 98% | 1T+ | Sichuan HongRi Pharma-Tech Co.,Ltd | ||
![]() |
2020-01-13 | (S)-4-ISOPROPYLOXAZOLIDINE-2,5-DIONE
24601-74-9
|
$1.00 | 1g | 99.0% | 100 kg | Career Henan Chemical Co | |
![]() |
2020-01-06 | Val-NCA
24601-74-9
|
$1.00 | 1g | 98% | 100KG | Sichuan Jiaying Lai Technology Co.,LTD |
-

- L-Val-NCA
24601-74-9
- 98%
- Sichuan HongRi Pharma-Tech Co.,Ltd
-

- (S)-4-ISOPROPYLOXAZOLIDINE-2,5-DIONE
24601-74-9
- $1.00
- 99.0%
- Career Henan Chemical Co
-

- Val-NCA
24601-74-9
- $1.00
- 98%
- Sichuan Jiaying Lai Technology Co.,LTD






