L-Cystine (CAS 56-89-3) — formula C6H12N2O4S2, molecular weight 240.02 g/mol; category food additives.
L-Cystine (CAS 56-89-3) is a food additives. Its molecular formula C6H12N2O4S2 comprises 6 C, 12 H, 2 N, 4 O, 2 S atoms. Its molecular weight is about 240.02 g/mol. Reported physicochemical data: melting point around 260.5 °C, LogP about -5.08. Food additives improve flavor, texture, color and shelf life of food, and must comply with relevant food-safety regulations and usage limits. Common in beverages, baking, dairy, meat and seasoning as acidity regulators, preservatives, colorants, thickeners, antioxidants or nutritional fortifiers. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 56-89-3 |
|---|---|
| Molecular Formula | C6H12N2O4S2 |
| Molecular Weight | 240.02 g/mol |
| Melting Point | 260.5 °C |
| LogP | -5.08 |
| Packaging | 25/50kg woven bags, 20/25/50kg fibre drums, 200kg plastic drums, 1000kg IBC (subject to order confirmation) |
| Applications | baking, dairy, meat and seasoning as acidity regulators, preservatives, colorants, thickeners |
| Category | Food Additives|Sweeteners|Flavors |
Documented applications: baking, dairy, meat and seasoning as acidity regulators, preservatives, colorants, thickeners.
L-Cystine is a food-grade compound with CAS registry number 56-89-3 and molecular formula C6H12N2O4S2 (molecular weight 240.02 g/mol), belonging to the food additives segment of chemical raw materials.
CAS number: 56-89-3
Its molecular formula C6H12N2O4S2 comprises 6 C, 12 H, 2 N, 4 O, 2 S atoms.
Also known as: L-Cystine · L-胱氨酸
Category: food additives / chemical / food flavors
The CAS registry number of L-Cystine is 56-89-3.
Molecular formula C6H12N2O4S2, molecular weight 240.02 g/mol.
It is also registered under: L-Cystine, L-胱氨酸.
Recorded applications: baking, dairy, meat and seasoning as acidity regulators, preservatives, colorants, thickeners.
Category: Food Additives / Sweeteners / Flavors.
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 L-Cystine (CAS 56-89-3), compiled from public chemistry databases.
| CAS Number | 56-89-3 |
|---|---|
| PubChem CID | 6992103 |
| Molecular Formula | C6H12N2O4S2 |
| Molecular Weight | 240.02 g/mol |
| IUPAC Name | (2R)-2-azaniumyl-3-[[(2R)-2-azaniumyl-2-carboxylatoethyl]disulfanyl]propanoate |
| InChIKey | LEVWYRKDKASIDU-IMJSIDKUSA-N |
| UNII (FDA) | 48TCX9A1VT |
| Molecular Weight | 240.3 |
|---|---|
| XLogP3 | -5 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 5 |
| Exact Mass | 240.02384922 |
| Monoisotopic Mass | 240.02384922 |
| Topological Polar Surface Area | 186 |
| Heavy Atom Count | 14 |
| Melting Point | 260.5 °C |
|---|---|
| Solubility | 0.19 mg/mL |
| LogP | -5.08 |
L-cystine zwitterion; L-(-)-3,3'-Dithiobis(2-aminopropanoic acid); 24645-67-8; CHEBI:35491; (2R,2'R)-3,3'-dithiobis(2-ammoniopropanoate); (2R,2'R)-3,3'-disulfanediylbis(2-ammoniopropanoate)
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: L-胱氨酸