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Sigma-Aldrich

(Trimethylsilyl)isothiocyanate

99%

Sinônimo(s):

Isothiocyanatotrimethylsilane

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About This Item

Fórmula linear:
(CH3)3SiNCS
Número CAS:
2290-65-5
Peso molecular:
131.27
Beilstein:
1745262
Número CE:
218-929-7
Número MDL:
MFCD00004797
Código UNSPSC:
12352100
ID de substância PubChem:
24853836
NACRES:
NA.22

densidade de vapor

>1 (vs air)

Ensaio

99%

forma

liquid

índice de refração

n20/D 1.482 (lit.)

pb

143 °C (lit.)

pf

−32.8 °C (lit.)

densidade

0.931 g/mL at 25 °C (lit.)

temperatura de armazenamento

2-8°C

cadeia de caracteres SMILES

C[Si](C)(C)N=C=S

InChI

1S/C4H9NSSi/c1-7(2,3)5-4-6/h1-3H3

chave InChI

XLTUPERVRFLGLJ-UHFFFAOYSA-N

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Descrição geral

Trimethylsilyl isothiocyanate (TMS-ITC) reacts with fullerene-mixed peroxide C60(O)(OOtBu)4 to yield isothiocyanate derivative C60(NCS)(OH)(OOtBu)4. TMS-ITC undergoes condensation with ethyl 2-benzylamino-5-methyl-3-phenylcyclopent-1-enecarboxylate to yield 1-benzyl-5-methyl-7-phenyl-2-thioxo-1,2,3,5,6,7-hexahydrocyclopentapyrimidin-4-one. It participates in ring opening reaction of N-substituted aziridines and cyclohexene oxide.

Aplicação

Trimethylsilyl isothiocyanate was used as derivatizing reagent during the synthesis of amino acid thiohydantoins.

Palavra indicadora

Danger

Classificações de perigo

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Irrit. 2 - Flam. Liq. 3 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

3 - Flammable liquids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

84.2 °F - closed cup

Ponto de fulgor (°C)

29 °C - closed cup

Equipamento de proteção individual

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Certificados de análise (COA)

Busque Certificados de análise (COA) digitando o Número do Lote do produto. Os números de lote e remessa podem ser encontrados no rótulo de um produto após a palavra “Lot” ou “Batch”.

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Ethoxycarbonyl isothiocyanate 98%

Sigma-Aldrich

196126

Ethoxycarbonyl isothiocyanate

Benzoyl isothiocyanate 98%

Sigma-Aldrich

261653

Benzoyl isothiocyanate

Hexamethylene diisocyanate puriss., ≥99.0% (GC)

Sigma-Aldrich

52649

Hexamethylene diisocyanate

Noncatalyzed Addition of Trimethylsilyl Isothiocyanate to Aziridines and Cyclohexene Oxide.
Prusinowska N and Gawronski J.
Synthetic Communications, 39(15), 2795-2803 (2009)
Frans D Therkelsen et al.
Organic & biomolecular chemistry, 1(16), 2908-2918 (2003-09-13)
Condensation of 3-(3,5-dimethylphenyl)-2-oxocyclopentanecarboxamide (11) with oxalyl chloride and condensation of ethyl 2-benzylamino-5-methyl-3-phenylcyclopent-1-enecarboxylate (17a) with trimethylsilyl isothiocyanate gave 7-(3,5-dimethylphenyl)-6,7-dihydro-5H-cyclopenta[e][1,3]oxazine-2,4-dione (12) and 1-benzyl-5-methyl-7-phenyl-2-thioxo-1,2,3,5,6,7- hexahydrocyclopentapyrimidin-4-one (18a), respectively. Acid catalyzed ring-closure of 6-(4-methyl-1-phenylpent-3-enyl)-2-thioxo-2,3-dihydro-1H-pyrimidin-4-one (26) and radical mediated ring-closure of 1,3-bis(benzyloxymethyl)-5-bromo-6-(1-phenylbut-3-enyl)-1H-pyrimidine-2,4- dione (32a) gave 5,5-dimethyl-8-phenyl-5,6,7,8-tetrahydro-1H-quinazoline-2,4-
J M Bailey et al.
Biochemistry, 29(12), 3145-3156 (1990-03-27)
Proteins and peptides can be sequenced from the carboxy terminus with isothiocyanate reagents to produce amino acid thiohydantoin derivatives. Previous studies in our laboratory indicated that the use of trimethylsilyl isothiocyanate (TMS-ITC) as a coupling reagent significantly improved the yields
D H Hawke et al.
Analytical biochemistry, 166(2), 298-307 (1987-11-01)
A reinvestigation of the isothiocyanate-based chemistry for cyclic degradations of peptides and proteins revealed that the reagent trimethylsilylisothiocyanate (TMS-ITC) gives superior results in terms of coupling efficiency and lack of complicating side reactions. Acetic anhydride (10 min at various temperatures)
B Mo et al.
Analytical biochemistry, 249(2), 207-211 (1997-07-01)
A novel and efficient method to prepare amino acid thiohydantoins, which are required as reference standards for development of C-terminal protein sequencing, is reported. Amino acid thiohydantoins were prepared using a straightforward method involving reaction of 20 free amino acids
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