ChemicalBook >> CAS DataBase List >>1,3-Bis(trimethylsilyl)urea
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
- Molecular Weight:
- 204.42
- MDL Number:
- MFCD00008260
- MOL File:
- 18297-63-7.mol
- MSDS File:
- SDS
Last updated:2026-01-13 11:23:01
| Product description | Number | Pack Size | Price |
| 1,3-Bis(trimethylsilyl)urea 95% | 226106 | 50g | $64.3 |
| N,N′-Bis(trimethylsilyl)urea purum, ≥98.0% (N) | 15248 | 250g | $212 |
| N,N'-Bis(trimethylsilyl)urea >98.0%(N) | B1103 | 25g | $82 |
| 1,3-Bis(trimethylsilyl)urea | B535405 | 500mg | $60 |
| N,N'-Bis(trimethylsilyl)urea,98%(Assaybytitration) 98%(Assaybytitration) | 37335 | 250G | $61.6 |
| More product size | |||
| 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 |
| pka | 16.51±0.46(Predicted) |
| form | solid |
| color | White to Almost white |
| Water Solubility | Reacts with water. |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 1937452 |
| InChI | 1S/C7H20N2OSi2/c1-11(2,3)8-7(10)9-12(4,5)6/h1-6H3,(H2,8,9,10) |
| InChIKey | MASDFXZJIDNRTR-UHFFFAOYSA-N |
| SMILES | C[Si](C)(C)NC(=O)N[Si](C)(C)C |
| 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) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS02 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H228 | |||||||||
| Precautionary statements | P210 | |||||||||
| PPE | Eyeshields, Gloves, type P3 (EN 143) respirator cartridges | |||||||||
| 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 | TSCA listed | |||||||||
| HS Code | 29310095 | |||||||||
| Storage Class | 4.1B - Flammable solid hazardous materials | |||||||||
| Hazard Classifications | Flam. Sol. 1 | |||||||||
| NFPA 704 |
|
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 | $82 | 2025-07-31 | Buy |
| TRC | B535405 | 1,3-Bis(trimethylsilyl)urea | 18297-63-7 | 500mg | $60 | 2021-12-16 | Buy |
| Chem-Impex | 37335 | N,N'-Bis(trimethylsilyl)urea,98%(Assaybytitration) 98%(Assaybytitration) | 18297-63-7 | 250G | $61.6 | 2021-12-16 | 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
Raw materials
Preparation Products
Global( 315)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 13636 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21599 | 55 |
| Shanghai Time Chemicals CO., Ltd. | +86-021-57951555 +8617317452075 | jack.li@time-chemicals.com | China | 1803 | 55 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| Tianjin Zhongxin Chemtech Co., Ltd. | 86-22-66880623 +8618622897568 | sales@tjzxchem.com | China | 572 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29833 | 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 | 10405 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22963 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
View Lastest Price from 1,3-Bis(trimethylsilyl)urea manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
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 | |
 |
2019-07-06 | 1,3-Bis(trimethylsilyl)urea
18297-63-7
|
US $1.00 / KG | 1KG | 99% | Customized | Career Henan Chemical Co |
-
- N,N'-Bis(Trimethylsilyl)Urea BSU
18297-63-7
- US $10.00 / KG
- 99%
- Hebei Zhanyao Biotechnology Co. Ltd
-
- 1,3-Bis(trimethylsilyl)urea
18297-63-7
- US $1.00 / KG
- 99%
- Career Henan Chemical Co
18297-63-7(1,3-Bis(trimethylsilyl)urea)Related Search:
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)
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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 >
Hexamethylene disilicate urea
HEXAMETHYL DISILAUREA CAS:18297-63-7
Hexamethyldisilurea
Hexamethyl disilazane (BSU)
N,N′-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
