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1,1,1,3,3,3-Hexamethyldisilazane
(CAS RN:999-97-3 Product Number:H0089)

Structure

1,1,1,3,3,3-Hexamethyldisilazane
Synonym HMDS

General Information

Product Number H0089

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Purity/Analysis Method >96.0%(GC)
Storage Temperature
M.F. / M.W. C6H19NSi2=161.40
CAS RN 999-97-3
Related CAS RN
MDL Number MFCD00008259
  • Product Details
  • Safety & Regulations
  • Reference & Application

Specification

Purity(GC) min. 96.0 %
Specific gravity (20/20) 0.7740 to 0.7780
Refractive index n20/D 1.4060 to 1.4100

Data of Reference

flp 8°C(lit.)
bp 126°C

References

Reaxys-RN 635752
PubChem SID 87570537
Merck Index(14) 4689
F&F 9,234
RTECS# JM9230000

GHS

Pictogram
Signal Word Danger
Hazard Statements
  • H225
  • :Highly flammable liquid and vapor.
  • H302
  • :Harmful if swallowed.
  • H311+H331
  • :Toxic by inhalation and in contact with skin.
  • H314
  • :Causes severe skin burns and eye damage.
  • H335+H336
  • :May cause respiratory irritation. May cause drowsiness or dizziness.
  • H370
  • :Causes damage to Nervous System.
  • H412
  • :Harmful to aquatic life with long lasting effects.
Precautionary Statements
  • P210
  • :Keep away from heat, sparks, open flames and hot surfaces. – No smoking.
  • P233
  • :Keep container tightly closed.
  • P240
  • :Ground and bond container and receiving equipment.
  • P241+P242+P243
  • :Use explosion-proof electrical, ventilating and lighting equipment. Use only non-sparking tools. Take precautionary measures against static discharge.
  • P260
  • :Do not breathe mist, vapors or spray.
  • P264
  • :Wash hands and face thoroughly after handling.
  • P270
  • :Do not eat, drink or smoke when using this product.
  • P271
  • :Use only outdoors or in a well-ventilated area.
  • P273
  • :Avoid release to the environment.
  • P280
  • :Wear protective gloves, protective clothing, face protection.
  • P301+P330+P331+P310
  • :If swallowed: Rinse mouth. Do NOT induce vomiting. Immediately call a poison center or doctor.
  • P303+P361+P353+P310+P363
  • :If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower. Immediately call a poison center or doctor. Wash contaminated clothing before reuse.
  • P304+P340+P310
  • :If inhaled: Remove person to fresh air and keep comfortable for breathing. Immediately call a poison center or doctor.
  • P305+P351+P338+P310
  • :If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a poison center or doctor.
  • P307+P311
  • :If exposed: Call a poison center or doctor.
  • P370+P378
  • :In case of fire: Use dry chemical, dry sand or foam to extinguish.
  • P403+P233
  • :Store in a well-ventilated place. Keep container tightly closed.
  • P405
  • :Store locked up.
  • P501
  • :Dispose of contents and container in accordance with local, regional, national regulations (e.g. US: 40 CFR Part 261, EU:91/156/EEC, JP: Waste Disposal and Cleaning Act, etc.).

Transport Information

UN Number 3286
Class 3/6.1, 8
Packing Group II
HS Number 2931.90.9010

Application

Trimethylsilylation of Alcohols using TMS Reagents

H0089

References

  • Protection for the Hydroxyl Group, Including 1,2- and 1,3-Diols
    • P. G. M. Wuts, in Greene’s Protective Groups in Organic Synthesis, 5th ed., ed. by P. G. M. Wuts, John Wiley & Sons, Inc., Hoboken, New Jersey, 2014, Chap. 2, 17.

Reactivity of Trimethylsilylating Reagents : Trimethylsilylation of Alcohols

H0089

References

  • Protection for the Hydroxyl Group, Including 1,2- and 1,3-Diols
    • P. G. M. Wuts, in Greene’s Protective Groups in Organic Synthesis, 5th ed., ed. by P. G. M. Wuts, John Wiley & Sons, Inc., Hoboken, New Jersey, 2014, Chap. 2, 17.

Mono-TMS Protection of Diols using TMS Chloride and HMDS

H0089

References

  • Protection for the Hydroxyl Group, Including 1,2- and 1,3-Diols
    • P. G. M. Wuts, in Greene’s Protective Groups in Organic Synthesis, 5th ed., ed. by P. G. M. Wuts, John Wiley & Sons, Inc., Hoboken, New Jersey, 2014, Chap. 2, 17.

PubMed Literature

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