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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 10856410Generated: November 2, 2026

2-(tert-Butyldimethylsilyloxy)malononitrile

MAC-TBS Reagent · (tert-Butyldimethylsiloxy)malononitrile · 2-(tert-Butyldimethylsiloxy)malononitrile · (tert-Butyldimethylsilyloxy)malononitrile · 2-(tert-Butyldimethylsilyloxy)malononitrile · 2-[(tert-Butyldimethylsilyl)oxy]malononitrile · {[tert-butyl(dimethyl)silyl]oxy}propanedinitrile · Propanedinitrile, 2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-

https://huagongshe.com/en/chemical/10856410

2-(tert-Butyldimethylsilyloxy)malononitrile molecular structure

Identifiers & Physical Properties

CAS No.128302-78-3
Molecular formulaC9H16N2OSi
Average molar mass196.32 g/mol
SMILESCC(C)(C)[Si](C)(C)OC(C#N)C#N
InChIKeyAIQDCGCDLHCZHB-UHFFFAOYSA-N
PubChem CID10856410
EC No.833-569-6

Chemical & Physical Properties

Boiling point220.4±30.0 °C(Predicted)
Density0.951±0.06 g/cm3(Predicted)
Refractive index1.4290 to 1.4330
Physical stateclear liquid
ColorWhite to Yellow to Green
CAS DataBase Reference128302-78-3
GHS pictogramGHS06
Signal wordDanger
GHS hazard statementsH319-H301+H311+H331-H315
GHS precautionary statementsP264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
UN transport numberUN 3276 6.1/PG III
Customs code2926.90.5050
Hazard class6.1
Packing groupIII

Safety & Regulations

UN transport numberUN 3276 6.1/PG III
Customs code2926.90.5050
Signal wordDanger
GHS pictogramGHS06
Hazard class6.1
Packing groupIII
GHS hazard statementsH319-H301+H311+H331-H315
GHS precautionary statementsP264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362

Applications & Uses

Uses

(tert-Butyldimethylsilyloxy)malononitrile is a useful reagent used in the preparation of peptides and Boc-amino acids.