General Description
ChemicalBook > CAS DataBase List > 1,3-Bis(trimethylsilyl)urea

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;Hexamethyl disilaurea;BIS(TRIMETHYLSILYL)UREA;1,3-Bis(trimethylsilyl);1,3-Bis(trimethylsilyl)urea;N,N'-Di(trimethylsilyl)urea;1,1-bis(triMethylsilyl)urea;N,N'-BIS(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
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
$83
Updated
2024/03/01
Alfa Aesar
Product number
L01301
Product name
N,N'-Bis(trimethylsilyl)urea, 98+%
Packaging
50g
Price
$20.65
Updated
2024/03/01
Alfa Aesar
Product number
L01301
Product name
N,N'-Bis(trimethylsilyl)urea, 98+%
Packaging
250g
Price
$64.65
Updated
2024/03/01
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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

Shanghai Kaisai Chemical Co., Ltd
Tel
021-33516722 13701817765
Fax
021-33516776
Email
kaisaichem@163.com
Country
China
ProdList
4742
Advantage
58
Hubei Zhonglong Kangsheng Fine Chemical Co., Ltd.
Tel
027-027-83855385 13407122916
Fax
027-83855385
Email
353799526@qq.com
Country
China
ProdList
2410
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58
Beijing Anruiqi Chemical Technology Co., Ltd.
Tel
010-5710845 18618313080
Fax
010-69233297
Email
1905569272@qq.com
Country
China
ProdList
244
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58
Tianjin Zhongxin Chemtech Co., Ltd.
Tel
022-66880623
Fax
86(0)22-66880086
Email
sales@tjzxchem.com
Country
China
ProdList
613
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J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Ark Pharm, Inc.
Tel
847-367-3680
Fax
847-367-3681
Email
sales@arkpharminc.com
Country
United States
ProdList
1670
Advantage
56
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44688
Advantage
61
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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:


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  • CH33SiNHCONHSiCH33
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  • Analytical Chromatography Product Catalog
  • Carbonyl Compounds
  • Ureas
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  • 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
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  • K00001