Synonym: Germanium Bis[bis(trimethylsilyl)amide], Germanium bis(hexamethyldisilazide), Ge[N(SiMe2Ph)2]2

CAS Number 55290-25-0 

Germanium bis(hexamethyldisilazide) Chemical Structure

Product codeGE0250
CAS number55290-25-0
Assay (purity)99%+
Metal purity99.99%-Ge
Purity methodby elemental analysis: %C=36.1-37.2; %H=9.1-9.4
Molecular weight393.41 g/mol
Appearanceorange-yellow solid
Melting point32-33 °C (89-91 °F)
Boiling point60 °C (140 °F) @ 0.4 mm Hg
Molecular formulaC12H36GeN2Si4
Linear formulaC12H36GeN2Si4
Packagingglassware/metal containers/bubblers

Bis[bis(trimethylsilyl)amino]germanium is used as an intermediate for Germazene. This product forms Poly(Germanium Enolates), reacts with Carbon Dioxide forming Silylated Isocyanates and Carbodimides. Synthesis of this product described in the literature. See links below

Ereztech manufactures and sells this product in small and bulk volumes. Glass ampules, bottles or metal ampules or bubblers are available for packaging. For additional analytical information or details about purchasing Bis[bis(trimethylsilyl)amino]germanium contact us at

Safety information

UNNot regulated
Hazardous classNot regulated
Packing groupNot regulated
Signal wordWARNING
Hazard statementsH302-H315-H319-H332-H335
Precautionary statementsP264-P264-P271-P280-P301 + P312-P303 + P361 + P353-P304 + P340-P305 + P351 + P338-p312-P3030-P332 + P313-P337 + P313-P362-P370 + P378
Transport descriptionNONH for all modes of transport
In TSCA registryNo (sold for research and development usage only)

First Aid Measures

General adviceConsult a physician. Show this safety data sheet to the doctor in attendance. Move out of the dangerous area.
Eye contactRinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Skin contactWash off with soap and plenty of water. Consult a physician.
InhalationIf breathed in, move person into the fresh air. If not breathing, give artificial respiration. Consult a physician.
If swallowedDo NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.


Certificates of Analysis (CoA)

If you don’t see the needed lot of Bis[bis(trimethylsilyl)amino]germanium below please contact customer support at

Lot# 015/706

External identifiers for Ge[N(SiMe2Ph)2]2

Pubchem CID50931156
IUPAC Namebis(trimethylsilyl)azanide;germanium
InchI IdentifierInChI=1S/2C6H18NSi2.Ge/c2*1-8(2,3)7-9(4,5)6;/h2*1-6H3;/q2*-1;

Known applications and external links

With Bis[bis(trimethylsilyl)amino]germanium other customers often ask:

Ereztech synthesizes and sells additional GE-compounds.

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