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D-Cysteine Hydrochloride Monohydrate
(CAS Number:207121-46-8 Product Number:C1329)


D-Cysteine Hydrochloride
Synonym H-D-Cys-OH·HCl Monohydrate

General Information

Product Number C1329

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Purity/Analysis Method >99.0%(T)
Storage Temperature
M.F. / M.W. C3H7NO2S·HCl·H2O=157.61(as Anhydrous)
CAS Number 207121-46-8
Related CAS Number
MDL Number MFCD00150051
  • Product Details
  • Safety & Regulations
  • Reference & Application


Purity(Iodometric Titration) min. 99.0 %(calcd.on dried substance)
Specific rotation [a]20/D -5.0 to -7.0 deg(C=8, 1mol/L HCl)
Solubility in Water almost transparency
Drying loss 8.0 to 11.0 %


Beilstein 4(3)1618
Reaxys-RN 4236784
PubChem SID 87566342


Signal Word Warning
Hazard Statements
  • H315
  • :Causes skin irritation.
  • H319
  • :Causes serious eye irritation.
Precautionary Statements
  • P264
  • :Wash hands and face thoroughly after handling.
  • P280
  • :Wear protective gloves, eye protection.
  • P302+P352+P332+P313+P362+P364
  • :If on skin: Wash with plenty of soap and water. If skin irritation occurs: Get medical advice or attention. Take off contaminated clothing and wash it before reuse.
  • P305+P351+P338+P337+P313
  • :If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice or attention.

Transport Information

HS Number 2922.49.4950


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