C4H12OSi2
132.31 g/mol
Pharmaceutical IntermediateDanger
1,1,3,3-Tetramethyldisiloxane
CAS3277-26-7EC221-906-4
Category
Pharmaceutical Intermediate
Compound Class
Other
Primary Use
Pharmaceutical Intermediate
1,1,3,3-Tetramethyldisiloxane is an organosilicon compound used as a silylation reagent and a pharmaceutical intermediate. It serves as a building block in the synthesis of various silicon-containing compounds for laboratory and industrial applications.
silylation reagentpharmaceutical intermediate
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
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Safety Reference
Danger
H225Highly flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 1,1,3,3-Tetramethyldisiloxane (CAS 3277-26-7) is 2931.90.
HS code (international, 6-digit)
2931.90
EU CN code (8-digit)
2931 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
InChIKey
KWEKXPWNFQBJAY-UHFFFAOYSA-N
SMILES
C[Si](C)O[Si](C)C
Synonyms (15)
- 1,1,3,3-Tetramethyldisiloxane
- 1,3,3-Tetramethyldisiloxane
- Bis(dimethylsilyl) ether
- Bis(dimethylsilyl) oxide
- Dimethylsilyl ether
- Disiloxane, tetramethyl-
- Disiloxane,1,3,3-tetramethyl-
- Siloxane HSi2
- sym-Tetramethyldisiloxane
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