S-ethylcysteine (CAS 2139-90-4) — formula C5H11NO2S, molecular weight 149.21; category food additives.
S-ethylcysteine (CAS 2139-90-4) is classified under Food Additives, with molecular formula C5H11NO2S and molecular weight 149.21, and serves as a key raw material in the food and beverage industry — commonly applied as a food additive, nutritional supplement, or processing aid where regulatory-grade purity is required. Jinan Shenghe Chemical Co., Ltd. supplies S-ethylcysteine at commercial scale with stable lot-to-lot quality, accompanied by COA and full specification documentation. Typical categorization: Food Additives.
| CAS Number | 2139-90-4 |
|---|---|
| Molecular Formula | C5H11NO2S |
| Molecular Weight | 149.21 |
| LogP | -2.3 |
| Category | Food Additives |
S-ethylcysteine is a food-grade compound with CAS registry number 2139-90-4 and molecular formula C5H11NO2S (molecular weight 149.21), belonging to the food additives segment of chemical raw materials.
CAS number: 2139-90-4
Its molecular formula C5H11NO2S comprises 5 C, 11 H, 1 N, 2 O, 1 S atoms.
Also known as: S-ethylcysteine · S-乙基半胱氨酸
Category: food additives
The CAS registry number of S-ethylcysteine is 2139-90-4.
Molecular formula C5H11NO2S, molecular weight 149.21.
It is also registered under: S-ethylcysteine, S-乙基半胱氨酸.
Category: Food Additives.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for S-ethylcysteine (CAS 2139-90-4), compiled from public chemistry databases.
| CAS Number | 2139-90-4 |
|---|---|
| PubChem CID | 92185 |
| Molecular Formula | C5H11NO2S |
| IUPAC Name | (2R)-2-amino-3-ethylsulfanylpropanoic acid |
| UNII (FDA) | B46YS921BY |
| Molecular Weight | 149.21 |
|---|---|
| XLogP3 | -2.3 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 4 |
| Exact Mass | 149.05104977 |
| Monoisotopic Mass | 149.05104977 |
| Topological Polar Surface Area | 88.6 |
| Heavy Atom Count | 9 |
S-Ethyl-L-cysteine; 2629-59-6; S-Ethylcysteine; L-Cysteine, S-ethyl-; 3-(Ethylthio)alanine; s-ethyl cysteine; (2R)-2-amino-3-(ethylsulfanyl)propanoic acid; Cysteine, S-ethyl-; EINECS 220-106-2; NSC 49244; B46YS921BY; 2139-90-4; 3-ethylthio-L-alanine; ETHYL-CYSTEINE; 22196-52-7; DTXSID9020588
| Notified hazard statements | H319 (100%) |
|---|
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: S-乙基半胱氨酸