N,O-Bis(trimethylsilyl)hydroxylamine

N,O-双三甲硅基羟胺

Also known as: 1,1,1-Trimethyl-N-[(trimethylsilyl)oxy]silanamine, 1,1,1-trimethyl-N-[(trimethylsilyl)oxy]silylamine, Bis(trimethylsilyl)hydroxylamine, O,N-Bis(trimethylsilyl)hydroxylamine, (trimethylsiloxy)(trimethylsilyl)amine, Me3SiNHOSiMe3, Silanamine, 1,1,1-trimethyl-N-[(trimethylsilyl)oxy]-, [dimethyl-(trimethylsilyloxyamino)silyl]methane, EINECS 245-188-7, MFCD00008266

N,O-Bis(trimethylsilyl)hydroxylamine (CAS 22737-37-7) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C6H19NOSi2 and a molecular weight of 177.392 g/mol. It is also known as 1,1,1-Trimethyl-N-[(trimethylsilyl)oxy]silanamine, 1,1,1-trimethyl-N-[(trimethylsilyl)oxy]silylamine and Bis(trimethylsilyl)hydroxylamine. Key properties include a boiling point of 139.8±9.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 38.3±18.7 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
22737-37-7
Jingsj CID
J-1413038-0
Molecular Formula
C6H19NOSi2
Chinese Name
N,O-双三甲硅基羟胺
Molecular Weight
177.392 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point139.8±9.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point38.3±18.7 °C
Exact Mass177.100510
PSA21.26000
LogP2.77
Vapor Pressure6.3±0.3 mmHg at 25°C
Refractive Index1.406
Storage Conditions2-8℃

GHS Safety & Compliance

Flammable / CorrosionSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N,O-Bis(trimethylsilyl)hydroxylamine?

The CAS number of N,O-Bis(trimethylsilyl)hydroxylamine is 22737-37-7.

What are the molecular formula and molecular weight of N,O-Bis(trimethylsilyl)hydroxylamine?

N,O-Bis(trimethylsilyl)hydroxylamine has molecular formula C6H19NOSi2 and molecular weight 177.392 g/mol.

Is N,O-Bis(trimethylsilyl)hydroxylamine hazardous?

N,O-Bis(trimethylsilyl)hydroxylamine has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of N,O-Bis(trimethylsilyl)hydroxylamine?

For N,O-Bis(trimethylsilyl)hydroxylamine, Upstream Products: 1,1,1,3,3,3-Hexamethyldisilazane, Chlorotrimethylsilane; Downstream Products: N,N,O-Tris(trimethylsilyl)hydroxylamine, N-Trimethylsilylaniline, 1-Butanol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N,O-Bis(trimethylsilyl)hydroxylamine (CAS 22737-37-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1413038-0 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.