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283134

Hexamethyldisilathiane

synthesis grade

Synonym(s):

(TMS)2S, HMDS, Bis(trimethylsilyl) sulfide, NSC 252160

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About This Item

Linear Formula:
(CH3)3SiSSi(CH3)3
CAS Number:
3385-94-2
Molecular Weight:
178.44
UNSPSC Code:
12352103
NACRES:
NA.23
PubChem Substance ID:
24857086
EC Number:
222-201-4
Beilstein/REAXYS Number:
1698358
MDL number:
MFCD00014851
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form

liquid

Quality Segment

quality

synthesis grade

refractive index

n20/D 1.4586 (lit.)

bp

164 °C (lit.)

density

0.846 g/mL at 25 °C (lit.)

SMILES string

C[Si](C)(C)S[Si](C)(C)C

InChI

1S/C6H18SSi2/c1-8(2,3)7-9(4,5)6/h1-6H3

InChI key

RLECCBFNWDXKPK-UHFFFAOYSA-N

Application

Hexamethyldisilathiane may be used in the bis-O-demethylation of dimethoxy aromatic compounds.
It may also be used as a sulfur source in the following conversion:
  • Amides and lactams to their corresponding sulfur analogs.
  • Allyl alcohols to diallyl sulfides.
  • Transition metal halides to metal sulfides.
  • Aryl iodides to diaryl sulfides.

Pictograms

FlameSkull and crossbones
GHS02,GHS06

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 3

Storage Class

3 - Flammable liquids

WGK

WGK 3

Flash Point (°F)

73.4 °F - closed cup

Flash Point (°C)

23 °C - closed cup

PPE (personal protective equipment)

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Type 2 petroleums + Hazardous rank III + Water insoluble liquid

fsl

283134-3KG-PW: + 283134-VAR: + 283134-25G: + 283134-500G-PW: + 283134-500G: + 283134-1G: + 283134-12KG: + 283134-3KG: + 283134-12KG-BULK: + 283134-1ML: + 283134-5G: + 283134-BULK: + 283134-500G-BULK:

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