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(CAS RN:1719-57-9 Product Number:C0605)


Synonym (Chloromethyl)dimethylchlorosilane
Synonym CMDMCS

General Information

Product Number C0605

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Purity/Analysis Method >98.0%(GC)
Storage Temperature
M.F. / M.W. C3H8Cl2Si=143.08
CAS RN 1719-57-9
Related CAS RN
MDL Number MFCD00000875
Packaging and Container
  • Product Details
  • Safety & Regulations


Purity(GC) min. 98.0 %
Specific gravity (20/20) 1.0840 to 1.0900
Refractive index n20/D 1.4350 to 1.4380

Data of Reference

flp 22°C(lit.)
bp 115°C


Reaxys-RN 1731933
PubChem SID 87565701
EC Number 217-006-6


Signal Word Danger
Hazard Statements
  • H225
  • :Highly flammable liquid and vapour.
  • H290
  • :May be corrosive to metals.
  • H314
  • :Causes severe skin burns and eye damage.
Precautionary Statements
  • P260
  • :Do not breathe dusts or mists.
  • P301+P330+P331+P310
  • :IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Immediately call a POISON CENTER or doctor.
  • P303+P361+P353+P310+P363
  • :IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower. Immediately call a POISON CENTER or doctor. Wash contaminated clothing before reuse.
  • P304+P340+P310
  • :IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER or doctor.
  • P305+P351+P338+P310
  • :IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor.
  • P370+P378
  • :In case of fire: Use dry chemical or dry sand to extinguish.

Transport Information

UN Number 2985
Class 3/8
Packing Group II
HS Number 2931399090


Silylating Reagent for GC-ECD


Experimental procedure:
Hexane (1 mL), diethylamine (0.075 mL) and CMDMCS (0.09 mL) are mixed in a sealable vessel and centrifuged. The resulting supernatant (0.4 mL) is added to sample (100 μg) in ethyl acetate (0.1 mL) and refluxed for 30 min at 65 °C. The mixture is then promptly cooled to room temperature followed by adding hexane to adjust to the appropriate concentration. This solution is injected into GC.


PubMed Literature

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