C6H19LiNSi2
168.4 g/mol
Pharmaceutical IntermediateDanger
Bis(trimethylsilyl)amidolithium
CAS4039-32-1EC223-725-6
Category
Pharmaceutical Intermediate
Compound Class
Organometallic
Primary Use
Pharmaceutical Intermediate
Bis(trimethylsilyl)amidolithium is a lithium salt of the bis(trimethylsilyl)amide anion. It is commonly used as a strong, non-nucleophilic base and a source of the bis(trimethylsilyl)amide ligand in organic synthesis and pharmaceutical manufacturing.
pharmaceutical intermediatestrong base in organic synthesis
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
H228Flammable solid
H302Harmful if swallowed
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H332Harmful if inhaled
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Bis(trimethylsilyl)amidolithium (CAS 4039-32-1) 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
QQIRAVWVGBTHMJ-UHFFFAOYSA-N
SMILES
[Li].C[Si](C)(C)N[Si](C)(C)C
Synonyms (12)
- (LiN(SiMe3)2)
- Li bis(TMS)A
- Lithium hexamethyldisilazane
- lithium HMDS
- lithium hexamethydisilazane
- lithium hexamethyidisilazane
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