Basic information
- CAS
920-68-3- Standard SMILES
CN([Si](C)(C)C)[Si](C)(C)C- InChIKey
ZSMNRKGGHXLZEC-UHFFFAOYSA-N- Molecular formula
- C7H21NSi2
- Average molar mass
- 175.42 g/mol
- Monoisotopic mass
- 175.12125274
Names & identifiers
- Preferred name
- Silanamine, N,1,1,1-tetramethyl-N-(trimethylsilyl)-
- IUPAC
- N,N-bis(trimethylsilyl)methanamine
- English name
- Heptamethyldisilazane
- Molecular formula
- C7H21NSi2
- Molecular weight
- 175.42
Names & synonyms
Heptamethyldisilazane920-68-3n,1,1,1-tetramethyl-n-(trimethylsilyl)silanamineSilanamine, N,1,1,1-tetramethyl-N-(trimethylsilyl)-N,1,1,1-Tetramethyl-N-(trimethylsilyl)silylamineEINECS 213-061-5DTXSID00862468RefChem:885075DTXCID70811226213-061-5N,N-bis(trimethylsilyl)methanamineMethylbis(trimethylsilyl)amine
Show more names
HPMDSHeptamethyldiilaneHeptamethyldisilazane>Hexamethylene disilazaneHeptamethyldisilazane,99%HEPTAMETHYLDISILAZANE 97+%HEPTAMETHYLDISILAZANE 97%HeptamethylpropanedisilazaneHeptamethyldisilazane, HPMDS
N,N-Bis(trimethylsilyl)methylamineMFCD00008262S0925037074-17-2Methylamine, 2TMS derivativeHeptamethyl disilazaneSCHEMBL234175SCHEMBL6293016
Database identifiers
- CAS
920-68-3- PubChem CID
- 70199
Properties
Computed structural properties
- Topological polar surface area
- 3.2 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 2
- Heavy atoms
- 10
- Formal charge
- 0
- Complexity
- 95.8
Experimental & physicochemical properties
SpringerMaterials Properties29Si nuclear magnetic resonance spectrum
Physicochemical properties
- Boiling point
- 144 · 144-147 °C(lit.)
- Density
- 0.799 g/mL · 0.799 g/mL at 20 °C(lit.)
- refractive index
- 20 · n20/D 1.421(lit.)
- Flash point
- 27 °C · 27 °C
- storage temp.
- Flammables area
- pka
- 14.41 · 14.41±0.70(Predicted)
- form
- clear liquid
- color
- Colorless to Almost colorless
- Specific Gravity
- 0.798 · 0.798
- Water Solubility
- Decomposes
- Sensitive
- Moisture Sensitive
- Hydrolytic Sensitivity
- 7 · 7: reacts slowly with moisture/water
- BRN
- 1737290 · 1737290
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Warning
H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]
P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 44 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Silanamine, N,1,1,1-tetramethyl-N-(trimethylsilyl)-
REACH registered substance: N,1,1,1-tetramethyl-N-(trimethylsilyl)silylamine (EC: 213-061-5)
Hazard Classes and CategoriesFlam. Liq. 3 (100%)
Safety data
- F
- 10
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 1993 3/PG 3
- hs_code
- 29319090
- risk_code
- 10-36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS02,GHS07
- hazard_code
- Xi
- safety_code
- 26-36
- hazard_class
- 3
- packing_group
- III
Chemistry & industry
Uses & manufacturing
General Manufacturing InformationSilanamine, N,1,1,1-tetramethyl-N-(trimethylsilyl)-: ACTIVE
Applications
UsesHeptamethyldisilazane is widely used in the production of pesticides, veterinary drugs and other pharmaceuticals.
Upstream & downstream products
Downstream products
Suppliers100 total
国药集团化学试剂有限公司86-21-63210123 · [email protected]
梯希爱(上海)化成工业发展有限公司021-67121386 · [email protected]
苏州道澜生物医药科技有限公司15952404857 · [email protected]
湖北永阔科技有限公司027-59223108 15972152991 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
毕佳索（上海毕得医药科技股份有限公司）400-6005915 · [email protected]
Related reactions
1 records
Compound notes
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