1,3-Bis(trimethylsilyl)urea

General Description

Product Name: 1,3-Bis(trimethylsilyl)urea
CAS No.: 18297-63-7
Chemical Name: 1,3-Bis(trimethylsilyl)urea
Synonyms: BSU;Urea, TMS;Hexamethyldisilurea;Hexamethyldisiluron;Hexamethyl disilaurea;BIS(TRIMETHYLSILYL)UREA;1,3-Bis(trimethylsilyl);Hexamethyldisilazaneurea;1,3-Bis(trimethylsilyl)urea;N,N'-Di(trimethylsilyl)urea
CBNumber: CB6152161
Molecular Formula: C7H20N2OSi2
Formula Weight: 204.42
MOL File: 18297-63-7.mol

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1,3-Bis(trimethylsilyl)urea Property

Melting point:: 219-221 °C(lit.)
Boiling point:: 222°C
Density: 0.887
vapor pressure: 0.002-1850Pa at 25℃
Flash point:: 65°C
storage temp.: Inert atmosphere,Room Temperature
solubility: pyridine: soluble100mg/mL, clear to slightly hazy, colorless to light yellow
form: solid
pka: 16.51±0.46(Predicted)
color: White to Almost white
Water Solubility: Reacts with water.
Hydrolytic Sensitivity: 7: reacts slowly with moisture/water
Sensitive: Moisture Sensitive
BRN: 1937452
InChIKey: MASDFXZJIDNRTR-UHFFFAOYSA-N
LogP: -2.11-2.72 at 20℃
CAS DataBase Reference: 18297-63-7(CAS DataBase Reference)
NIST Chemistry Reference: Urea, n,n'-bis(trimethylsilyl)-(18297-63-7)
EPA Substance Registry System: N,N'-Bis(trimethylsilyl)urea (18297-63-7)

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Safety

Hazard Codes: F,Xn
Risk Statements: 11-36/37/38-20/21/22
Safety Statements: 14-16-24/25-36-26
RIDADR: UN 1325 4.1/PG 2
WGK Germany: 3
F: 3-10-21
TSCA: Yes
HS Code: 29310095

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word: Danger
Hazard statements: H228Flammable solid
Precautionary statements: P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 226106
Product name: 1,3-Bis(trimethylsilyl)urea
Purity: 95%
Packaging: 50g
Price: $64.3
Updated: 2023/06/20

Sigma-Aldrich

Product number: 15248
Product name: N,N′-Bis(trimethylsilyl)urea
Purity: purum, ≥98.0% (N)
Packaging: 250g
Price: $212
Updated: 2023/06/20

TCI Chemical

Product number: B1103
Product name: N,N'-Bis(trimethylsilyl)urea
Purity: >98.0%(N)
Packaging: 25g
Price: $82
Updated: 2025/07/31

TRC

Product number: B535405
Product name: 1,3-Bis(trimethylsilyl)urea
Packaging: 500mg
Price: $60
Updated: 2021/12/16

Chem-Impex

Product number: 37335
Product name: N,N'-Bis(trimethylsilyl)urea,98%(Assaybytitration)
Purity: 98%(Assaybytitration)
Packaging: 250G
Price: $61.6
Updated: 2021/12/16

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1,3-Bis(trimethylsilyl)urea Chemical Properties,Usage,Production

General Description

Silazane is any hydride of silicon and nitrogen having a straight or branched chain of silicon and nitrogen atoms joined by covalent bonds. By extension, the word is also used for any organic derivative of such compounds. They are analogous to siloxanes, with -NH- replacing -O-. Their individual name is dependent on the number of silicon atoms in the chemical structure. 1,3-Bis(trimethylsilyl)urea is an effective silylating agent. It is used in the pharmaceutical and in the chemical industry.

Chemical Properties

White solid with mild odor

Uses

N,N'-Bis(trimethylsilyl)urea is used as a reagent for the silylation of alcohols and carboxylic acids.

Flammability and Explosibility

Not classified

1,3-Bis(trimethylsilyl)urea Preparation Products And Raw materials

Raw materials

Preparation Products

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1,3-Bis(trimethylsilyl)urea Suppliers

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View Lastest Price from 1,3-Bis(trimethylsilyl)urea manufacturers

Hebei Zhanyao Biotechnology Co. Ltd

Product: N,N'-Bis(Trimethylsilyl)Urea BSU 18297-63-7
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 20 tons
Release date: 2021-10-08

Career Henan Chemical Co

Product: 1,3-Bis(trimethylsilyl)urea 18297-63-7
Price: US $1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: Customized
Release date: 2018-08-07

18297-63-7, 1,3-Bis(trimethylsilyl)ureaRelated Search:

Hexamethyldisilazane Urea 1,1,3,3-Tetramethylurea Hexamethyldisilane Heptamethyldisilazane N-(Trimethylsilyl)acetamide Methanesiliconic acid sodium salt ACETYLUREA Silicon TRIMETHYLSILYL CHLOROSULFONATE Silicone rubber,methyl-vinyl BIS-N,N'-(TRIMETHYLSILYL)-N-PHENYLUREA (5-METHYL-1,3-BIS-TRIMETHYLSILYL)-2,4-(1H,3H-PYRIMIDINEDIONE) 1,3-Bis(trimethylsilyl)urea

Urea, TMS

BIS(TRIMETHYLSILYL)UREA

BSU

N,N'-BIS(TRIMETHYLSILYL)UREA

Hexamethyl disilaurea

N N'-BIS(TRIMETHYLSILYL)UREA 98+%

Bis-(Trimethylsilyl)-Urea (BSU)

Ureylenebis(trimethylsilane)

1,3-Bis(trimethylsilyl)urea

1,3-Bis(trimethylsilyl)urea,98%

Bis(trimethylsilyl) derivative of Urea

n,n’-bis(trimethylsilyl)-ure

N,N'-Di(trimethylsilyl)urea

N1,N2-Bis(trimethylsilyl)urea

Urea, 1,3-bis(trimethylsilyl)-

Urea, N,N'-bis(trimethylsilyl)-

1,1-bis(triMethylsilyl)urea

N,N'-Bis(triMethylsilyl)urea puruM, >=98.0% (N)

1,3-Bis(trimethylsilyl)urea 95%

1,3-Bis(trimethylsilyl)

N,N'-Bis(trimethylsilyl)urea &gt

Hexamethylene disilicate urea

HEXAMETHYL DISILAUREA CAS:18297-63-7

Hexamethyldisilurea

Hexamethyl disilazane (BSU)

<i>N</i>,<i>N</i>′-Bis(trimethylsilyl)urea

Hexamethyldisilazaneurea

Hexamethyldisiluron

18297-63-7

CH33SiNHCONHSiCH33

C7H20N2OSi2

Building Blocks

Analytical Chromatography Product Catalog

Carbonyl Compounds

Ureas

Organic Building Blocks

Fluka Reagents

Derivatization Reagents

Trimethylsilylazide, etc.

Si-N Compounds

Si (Classes of Silicon Compounds)

Silicon Compounds (for Synthesis)

Building Blocks

Carbonyl Compounds

Chemical Synthesis

Organic Building Blocks

Ureas

Trimethylsilylazide, etc.

Si (Classes of Silicon Compounds)

Silicon Compounds (for Synthesis)

Si-N Compounds

Synthetic Organic Chemistry

Blocking Agents

Protective Agents

Silazanes

Silylating Agents

Special Silanes

K00001