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ChemicalBook >> CAS DataBase List >> Hexamethyldisilazane

Hexamethyldisilazane

Hexamethyldisilazane price.
  • $9 - $6454.37
  • Product name: Hexamethyldisilazane
  • CAS: 999-97-3
  • MF: C6H19NSi2
  • MW: 161.39
  • EINECS:213-668-5
  • MDL Number:MFCD00008259
  • Synonyms:1,1,1-trimethyl-n-(trimethylsilyl)-silanamin ;hexamethyl disilizane;HEXAMETHYLDISILAZANE;Disilazane, 1,1,1,3,3,3-hexamethyl-;LABOTEST-BB LT01408762;SILAZANE HMN;1,1,1,3,3,3-Hexamethyldisilazane(HMDS);HEXAMETHYLDISILAZANE SEMICONDUCTOR GRADE
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  • aablocks
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  • Manufactureraablocks
  • Product numberAA0034GF
  • Product descriptionBis(Trimethylsilyl)Amine 96%
  • Packaging5g
  • Price$18
  • Updated2026-05-21
  • Buy
  • Manufactureraablocks
  • Product numberAA0034GF
  • Product descriptionBis(Trimethylsilyl)Amine 96%
  • Packaging5g
  • Price$18
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0034GF
  • Product descriptionBis(Trimethylsilyl)Amine 96%
  • Packaging25g
  • Price$29
  • Updated2026-05-21
  • Buy
  • Manufactureraablocks
  • Product numberAA0034GF
  • Product descriptionBis(Trimethylsilyl)Amine 96%
  • Packaging25g
  • Price$29
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0034GF
  • Product descriptionBis(Trimethylsilyl)Amine 96%
  • Packaging100g
  • Price$63
  • Updated2026-05-21
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  • Manufactureraablocks
  • Product numberAA0034GF
  • Product descriptionBis(Trimethylsilyl)Amine 96%
  • Packaging100g
  • Price$63
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0034GF
  • Product descriptionBis(Trimethylsilyl)Amine 96%
  • Packaging500g
  • Price$207
  • Updated2026-05-21
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  • Manufactureraablocks
  • Product numberAA0034GF
  • Product descriptionBis(Trimethylsilyl)Amine 96%
  • Packaging500g
  • Price$207
  • Updated2026-05-28
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  • ManufacturerAK Scientific
  • Product numberJ70217
  • Product descriptionHexamethyldisilazane
  • Packaging30mL
  • Price$32
  • Updated2021-12-16
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  • ManufacturerAK Scientific
  • Product numberJ95792
  • Product descriptionHexamethyldisilazane
  • Packaging100mL
  • Price$40
  • Updated2021-12-16
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  • ManufacturerAK Scientific
  • Product numberI095
  • Product descriptionHexamethyldisilazane
  • Packaging100mL
  • Price$54
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberORS0005024
  • Product descriptionHEXAMETHYL DISILAZANE 95.00%
  • Packaging250G
  • Price$4086.16
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberORS0005024
  • Product descriptionHEXAMETHYL DISILAZANE 95.00%
  • Packaging1KG
  • Price$6454.37
  • Updated2021-12-16
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  • ManufacturerApolloscientific
  • Product numberOR3890
  • Product descriptionHexamethyldisilazane 98%
  • Packaging1kg
  • Price$54
  • Updated2026-06-04
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  • ManufacturerApolloscientific
  • Product numberOR3890
  • Product descriptionHexamethyldisilazane 98%
  • Packaging250g
  • Price$28
  • Updated2026-06-04
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  • ManufacturerApolloscientific
  • Product numberOR3890
  • Product descriptionHexamethyldisilazane 98%
  • Packaging25g
  • Price$21
  • Updated2026-06-04
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Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA0034GF Bis(Trimethylsilyl)Amine 96% 5g $18 2026-05-21 Buy
aablocks AA0034GF Bis(Trimethylsilyl)Amine 96% 5g $18 2026-05-28 Buy
aablocks AA0034GF Bis(Trimethylsilyl)Amine 96% 25g $29 2026-05-21 Buy
aablocks AA0034GF Bis(Trimethylsilyl)Amine 96% 25g $29 2026-05-28 Buy
aablocks AA0034GF Bis(Trimethylsilyl)Amine 96% 100g $63 2026-05-21 Buy
aablocks AA0034GF Bis(Trimethylsilyl)Amine 96% 100g $63 2026-05-28 Buy
aablocks AA0034GF Bis(Trimethylsilyl)Amine 96% 500g $207 2026-05-21 Buy
aablocks AA0034GF Bis(Trimethylsilyl)Amine 96% 500g $207 2026-05-28 Buy
AK Scientific J70217 Hexamethyldisilazane 30mL $32 2021-12-16 Buy
AK Scientific J95792 Hexamethyldisilazane 100mL $40 2021-12-16 Buy
AK Scientific I095 Hexamethyldisilazane 100mL $54 2021-12-16 Buy
American Custom Chemicals Corporation ORS0005024 HEXAMETHYL DISILAZANE 95.00% 250G $4086.16 2021-12-16 Buy
American Custom Chemicals Corporation ORS0005024 HEXAMETHYL DISILAZANE 95.00% 1KG $6454.37 2021-12-16 Buy
Apolloscientific OR3890 Hexamethyldisilazane 98% 1kg $54 2026-06-04 Buy
Apolloscientific OR3890 Hexamethyldisilazane 98% 250g $28 2026-06-04 Buy
Apolloscientific OR3890 Hexamethyldisilazane 98% 25g $21 2026-06-04 Buy

Properties

Melting point :-78 °C
Boiling point :125 °C (lit.)
Density :0.774 g/mL at 25 °C(lit.)
vapor density :4.6 (vs air)
vapor pressure :20 hPa (20 °C)
refractive index :n20/D 1.407(lit.)
Flash point :57.2 °F
storage temp. :Store below +30°C.
solubility :Miscible with acetone, benzene, ethyl ether, heptane and perchloroethylene.
pka :30(at 25℃)
form :Liquid
Specific Gravity :0.774
color :Colorless
Odor :Ammonia odour
PH Range :8.5
explosive limit :0.8-25.9%(V)
Water Solubility :REACTS
Sensitive :Moisture Sensitive
Hydrolytic Sensitivity :7: reacts slowly with moisture/water
Merck :14,4689
BRN :635752
Henry's Law Constant :1.1×10-1 mol/(m3Pa) at 25℃, HSDB (2015)
InChI :1S/C6H19NSi2/c1-8(2,3)7-9(4,5)6/h7H,1-6H3
InChIKey :FFUAGWLWBBFQJT-UHFFFAOYSA-N
SMILES :C[Si](C)(C)N[Si](C)(C)C
LogP :0.23-1.19 at 20-25℃
CAS DataBase Reference :999-97-3(CAS DataBase Reference)
NIST Chemistry Reference :Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-(999-97-3)
EPA Substance Registry System :Hexamethyldisilazane (999-97-3)

Safety Information

Symbol(GHS): Flame (GHS02)Corrosion (GHS05)Skull and Crossbones (GHS06)Health Hazard (GHS08)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501
H370 Causes damage to organs Specific target organ toxicity, single exposure Category 1 Danger P260, P264, P270, P307+P311, P321,P405, P501
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P241 Use explosion-proof electrical/ventilating/lighting/…/equipment.
P242 Use only non-sparking tools.
P243 Take precautionary measures against static discharge.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly 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/eye protection/face protection.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P370+P378 In case of fire: Use … for extinction.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P403+P235 Store in a well-ventilated place. Keep cool.
P405 Store locked up.
P501 Dispose of contents/container to..…

Description

Hexamethyldisilazane is a bulk organo silicon compound, being a quite useful silanizing agent. It is a reagent for the preparation of trimethylsilyl derivatives. It can be used for silanizing the surface of silicon water, cellulose. It can also be used to dehydrate cells of biomaterials for scanning electron microscopy (SEM). The hexamethyldisilazane coatings on various nanoparticles make them be resistant to water contamination and flocculation during synthesis. It can also be used as a modifier to control the shape, formation of agglomerates surface area and pore size of silica particles. Moreover, it is an adhesion promoter for photoresist in photolithography, and is also useful in the pyrolysis-gas chromatography-mass spectrometry to enhance the detectability of compounds with polar functional groups.

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