- L-Cys DME 2HCl
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- $580.00
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2025-05-07
- CAS:32854-09-4
- Purity: 98
- Supply Ability: 5000 Kg
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| | Dimethyl L-cystinate dihydrochloride Basic information |
| | Dimethyl L-cystinate dihydrochloride Chemical Properties |
| Melting point | 182-183 °C (dec.)(lit.) | | alpha | -35 º (c=4, MeOH) | | storage temp. | Keep in dark place,Sealed in dry,Room Temperature | | solubility | DMSO, Methanol, Water | | form | Powder | | color | White | | Optical Rotation | [α]22/D 36.0°, c = 4% in methanol | | BRN | 4727524 | | Major Application | peptide synthesis | | InChI | InChI=1/C8H16N2O4S2.2ClH/c1-13-7(11)5(9)3-15-16-4-6(10)8(12)14-2;;/h5-6H,3-4,9-10H2,1-2H3;2*1H/t5-,6-;;/s3 | | InChIKey | QKWGUPFPCRKKMQ-BNTLRKBRSA-N | | SMILES | [C@H](N)(CSSC[C@H](N)C(=O)OC)C(=O)OC.Cl.Cl |&1:0,6,r| | | CAS DataBase Reference | 32854-09-4(CAS DataBase Reference) |
| Hazard Codes | Xi,Xn | | Risk Statements | 36/37/38-22 | | Safety Statements | 26-36-37/39 | | WGK Germany | 3 | | HS Code | 29309090 | | Storage Class | 11 - Combustible Solids |
| | Dimethyl L-cystinate dihydrochloride Usage And Synthesis |
| Chemical Properties | White Solid | | Uses | L-Cystine-dimethyl Ester Dihydrochloride (cas# 32854-09-4) is a compound useful in organic synthesis. | | reaction suitability | reaction type: solution phase peptide synthesis | | Synthesis | Measure 150mL of anhydrous methanol in a 250mL round-bottomed flask, slowly add SOCl2 (8.0mL, 108mmol) dropwise, and then add 10g of L-cystine to the reaction solution in batches. After returning to room temperature, refluxed at 60C for 5 h. At the end of the reaction, the solvent was evaporated, and L-cystine dimethyl ester dihydrochloride was obtained by 1:1 crystallization with methanol and petroleum ether, white solid. |
| | Dimethyl L-cystinate dihydrochloride Preparation Products And Raw materials |
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