Chlorodimethylsilane
{{chembox
| Verifiedfields = changed
| verifiedrevid = 412835735
| Reference = Sigma-Aldrich Handbook of Fine Chemicals 2007, page 654.
| ImageFileL1 = Chlorodimethylsilane formula V.1.svg
| ImageFileR1 = Chlorodimethylsilane_(structure).png
| PIN = Chlorodi(methyl)silane
| OtherNames = Dimethylchlorosilane, DMCS
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 59496
| InChI = 1/C2H7ClSi/c1-4(2)3/h4H,1-2H3
| InChIKey = YGHUUVGIRWMJGE-UHFFFAOYAP
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C2H7ClSi/c1-4(2)3/h4H,1-2H3
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = YGHUUVGIRWMJGE-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 1066-35-9
| UNII_Ref = {{fdacite|changed|FDA}}
| UNII = XR7E4F5838
| PubChem = 6327132
| EC_number = 213-912-0
| UNNumber = 2924
| SMILES = Cl[SiH](C)C
}}
|Section2={{Chembox Properties
| Formula = (CH3)2SiHCl
| MolarMass = 94.62 g/mol
| Appearance =
| Density = 0.852 g/mL, 25 °C
| MeltingPtC = -111
| BoilingPtC = 34.7
| Solubility =
}}
|Section3={{Chembox Hazards
| MainHazards =
| FlashPt =
| AutoignitionPt =
| GHSPictograms = {{GHS02}}{{GHS05}}{{GHS06}}
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|224|261|314|331}}
| PPhrases = {{P-phrases|210|231+232|233|240|241|242|243|260|261|264|271|280|301+330+331|303+361+353|304+340|305+351+338|310|311|321|363|370+378|402+404|403+233|403+235|405|501}}
}}
|Section8={{Chembox Related
| OtherFunction_label =
| OtherAnions =
| OtherCations =
| OtherCompounds = Dichloromethylsilane, Trichlorosilane, Trimethylsilane
| OtherFunction = }}
}}
Chlorodimethylsilane, also called dimethylchlorosilane and abbreviated DMCS, is a chemical compound with the formula (CH3)2SiHCl. It is a silane, with a silicon atom bonded to two methyl groups, a chlorine atom, and a hydrogen atom.
Its structure, including bond lengths and bond angles, has been determined using Fourier transform microwave spectroscopy.{{cite journal |last=Kawashima |first=Y. |date=May 2001 |title=The rotational spectrum of chlorodimethylsilane using Fourier transform microwave spectroscopy |journal=Journal of Molecular Structure |volume=563-564 |issue=1–3 |pages=227–230 |doi=10.1016/S0022-2860(00)00879-6 |bibcode=2001JMoSt.563..227K }}