- DL-Cysteine
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-
2026-06-16
- CAS:3374-22-9
- Min. Order: 1KG
- Purity: 98%min
- Supply Ability: 500kgs
- DL-Cysteine
-
-
2025-06-27
- CAS:3374-22-9
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 500000kg
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| | DL-Cysteine Basic information |
| Product Name: | DL-Cysteine | | Synonyms: | (RS)-2-Amino-3-mercapto-propansαure;Cysteine, DL-;DL-2-amino-3-mercaptopropanoicacid;DL-2-amino-3-mercaptopropionicacid;DL-CYSTEINE FREE BASE;DL-2-Amino-3-mercaptopropionicacid~H-DL-Cys-OH;(+/-)-2-AMINO-3-MERCAPTOPROPIONIC ACID;2-AMINO-3-MERCAPTO-PROPIONIC ACID | | CAS: | 3374-22-9 | | MF: | C3H7NO2S | | MW: | 121.16 | | EINECS: | 222-160-2 | | Product Categories: | Amino Acids;Pharmaceutical Intermediates;bc0001 | | Mol File: | 3374-22-9.mol |  |
| | DL-Cysteine Chemical Properties |
| Melting point | 225 °C (dec.) (lit.) | | Boiling point | 293.9±35.0 °C(Predicted) | | density | 1.197 (estimate) | | refractive index | 1.5130 (estimate) | | storage temp. | Keep in dark place,Inert atmosphere,Room temperature | | solubility | Aqueous Acid (Sparingly), DMSO (Sightly), Water (Slightly) | | pka | 2.07±0.10(Predicted) | | form | Powder | | color | White to off-white | | Water Solubility | Soluble in water (partly), 1 N HCl (25 mg/ml), ethanol, and acetic acid. Insoluble in acetone. | | BRN | 1721406 | | Stability: | Stable. Incompatible with strong oxidizing agents, | | Major Application | peptide synthesis | | Cosmetics Ingredients Functions | ANTIOXIDANT
HAIR CONDITIONING
REDUCING
HAIR WAVING OR STRAIGHTENING
FRAGRANCE
ANTISTATIC | | InChI | 1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6) | | InChIKey | XUJNEKJLAYXESH-UHFFFAOYSA-N | | SMILES | NC(CS)C(O)=O | | LogP | 0.230 (est) | | CAS DataBase Reference | 3374-22-9(CAS DataBase Reference) | | NIST Chemistry Reference | DL-Cysteine(3374-22-9) |
| Hazard Codes | Xn,Xi,C | | Risk Statements | 20/21/22-36/37/38-22-35 | | Safety Statements | 26-36-37/39-45-36/37/39 | | RIDADR | UN 2923 6.1(8) / PGIII | | WGK Germany | 3 | | RTECS | HA1595000 | | F | 8-10-23 | | HazardClass | 8, 6.1 | | HS Code | 29309013 | | Storage Class | 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects | | Hazard Classifications | Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Eye Dam. 1
Skin Corr. 1A
STOT SE 3 |
| | DL-Cysteine Usage And Synthesis |
| Chemical Properties | white solid | | Uses | DL-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. Cysteine is commonly used as a precursor in the food and pharmaceutical industries. Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours. | | Uses | DL-Cysteine is a NMDA agonist at quisqualate receptors at high concentration. | | Definition | ChEBI: A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3. | | reaction suitability | reaction type: solution phase peptide synthesis | | Biochem/physiol Actions | NMDA agonist that is an agonist at quisqualate receptors at high concentration. |
| | DL-Cysteine Preparation Products And Raw materials |
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