| Product name: | D-cysteine hydrochloride anhydrous | 
| Alias: | d-Cysteine hydrochloride; H-D-Cys-OH.HCl; D-Cysteine HCL anhydrous; D-Cysteine HCL; H-D-Cys-OH·H2O·HCl; D-Cysteine hydrochloride monohydrate | 
| CAS NO.: | 32443-99-5 | 
| EINECS NO.: | 251-043-9 | 
| Molecular formula: | C3H7NO2S·HCl;C3H8ClNO2S | 
| Molecular weight: | 157.62 | 
| InChI: | InChI=1/C3H7NO2S.ClH/c4-2(1-7)3(5)6;/h2,7H,1,4H2,(H,5,6);1H/t2-;/m1./s1 | 
| Molecular structure: | ![]()  | 
		
| Melting point: | 185℃ (dec.) |