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LC991 tert-Butyldimethylchlorosilane

for synthesis


Order number Packaging Quantity Price €
AC27991 Glass bottle 25 g 89.55
AC27991 Glass bottle 100 g 184.50


Product information
Synonyms tert-Butyldimethylsilyl chloride, tert-Butylchlorodimethylsilane, TBDMSCl
Hill Formula C6H15ClSi
Chemical formula (CH3)3CSi(CH3)2Cl
HS Code 2931 00 99
EC number 242-042-4
Molar mass 150.72 g/mol
CAS number 18162-48-6


Chemical and physical data
Solubility (20 °C) (decomposition)
Melting point 87 – 90 °C
Molar mass 150.72 g/mol
Boiling point 125 °C
Flash point 22 °C


Safety information according to GHS
Hazard Statement(s) H228: Flammable solid.
H314: Causes severe skin burns and eye damage.
Precautionary Statement(s P210: Keep away from heat.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Danger
Hazard Pictogram(s)
RTECS VV2000000
Storage class 4.1B Flammable solids
WGK WGK 3 highly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C



Safety information
R Phrase R 34
Causes burns.
S Phrase S 26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger corrosive
Hazard Symbol Corrosive


Transport information
Declaration (transport by sea) IMDG-Code UN 2925 FLAMMABLE SOLID, CORROSIVE, ORGANIC, N.O.S.(BUTYLDIMETHYLCHLOROSILANE), 4.1 (8), II, Segregation Group: 1 (Acids)


Assay (GC, area%) ≥ 97 %
Melting range
– lower value
≥ 87 °C
– upper value ≤ 90 °C
Identity (IR) passes test


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