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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
Molecular Weight:
204.42
MDL Number:
MFCD00008260
MOL File:
18297-63-7.mol
MSDS File:
SDS
Last updated:2023-04-23 13:52:06

1,3-Bis(trimethylsilyl)urea Properties

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.
Sensitive Moisture Sensitive
Hydrolytic Sensitivity 7: reacts slowly with moisture/water
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)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS02
Signal word  Danger
Hazard statements  H228
Precautionary statements  P210
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
NFPA 704
0
0 0

1,3-Bis(trimethylsilyl)urea price More Price(23)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 226106 1,3-Bis(trimethylsilyl)urea 95% 18297-63-7 50g $64.3 2023-06-20 Buy
Sigma-Aldrich 15248 N,N′-Bis(trimethylsilyl)urea purum, ≥98.0% (N) 18297-63-7 250g $212 2023-06-20 Buy
TCI Chemical B1103 N,N'-Bis(trimethylsilyl)urea >98.0%(N) 18297-63-7 25g $83 2024-03-01 Buy
Alfa Aesar L01301 N,N'-Bis(trimethylsilyl)urea, 98+% 18297-63-7 50g $20.65 2024-03-01 Buy
Alfa Aesar L01301 N,N'-Bis(trimethylsilyl)urea, 98+% 18297-63-7 250g $64.65 2024-03-01 Buy
Product number Packaging Price Buy
226106 50g $64.3 Buy
15248 250g $212 Buy
B1103 25g $83 Buy
L01301 50g $20.65 Buy
L01301 250g $64.65 Buy

1,3-Bis(trimethylsilyl)urea Chemical Properties,Uses,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

Global( 287)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Daken Advanced Materials Co.,Ltd
+86-371-66670886 info@dakenam.com China 14764 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21700 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555 +8617317452075 jack.li@time-chemicals.com China 1807 55
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795 ivan@atkchemical.com China 32480 60
Tianjin Zhongxin Chemtech Co., Ltd.
+86-022-66880623 +8618622897568 sales@tjzxchem.com China 558 58
career henan chemical co
+86-0371-86658258 sales@coreychem.com China 29914 58
Win-Win Chemical CO., Limited
0086-577-64498589 sales@win-winchemical.com CHINA 998 58
Shenzhen Nexconn Pharmatechs Ltd
+86-755-89396905 +86-15013857715 admin@nexconn.com China 7836 58
Xi'an Kono chem co., Ltd.,
029-86107037 13289246953 info@konochemical.com China 2995 58
Hubei xin bonus chemical co. LTD
86-13657291602 linda@hubeijusheng.com CHINA 22968 58

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

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
N,N'-Bis(Trimethylsilyl)Urea BSU pictures 2021-10-09 N,N'-Bis(Trimethylsilyl)Urea BSU
18297-63-7
US $10.00 / KG 1KG 99% 20 tons Hebei Zhanyao Biotechnology Co. Ltd
1,3-Bis(trimethylsilyl)urea pictures 2019-07-06 1,3-Bis(trimethylsilyl)urea
18297-63-7
US $1.00 / KG 1KG 99% Customized Career Henan Chemical Co
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) HEXAMETHYL DISILAUREA CAS:18297-63-7 Hexamethylene disilicate urea N,N'-Bis(trimethylsilyl)urea > Hexamethyldisilurea 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