Diphenyldimethoxysilane
- CAS No.
- 6843-66-9
- Chemical Name:
- Diphenyldimethoxysilane
- Synonyms
- DIMETHOXYDIPHENYLSILANE;DMDPS;DPDMS;z6074;kbm202;HD-129;KH-621;CD6010;tsl8172;ay43-047
- CBNumber:
- CB1728244
- Molecular Formula:
- C14H16O2Si
- Molecular Weight:
- 244.36
- MDL Number:
- MFCD00025690
- MOL File:
- 6843-66-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Dimethoxydiphenylsilane ≥95.0% (GC) | 42940 | 100ml | $134 |
| Dimethoxydiphenylsilane >98.0%(GC) | D1731 | 25mL | $32 |
| Dimethoxydiphenylsilane >98.0%(GC) | D1731 | 100mL | $84 |
| Diphenyldimethoxysilane, min. 97% | 14-2500 | 50g | $45 |
| Diphenyldimethoxysilane, min. 97% | 14-2500 | 250g | $152 |
| More product size | |||
| Melting point | <0°C |
|---|---|
| Boiling point | 161 °C15 mm Hg(lit.) |
| Density | 1.08 g/mL at 20 °C(lit.) |
| vapor pressure | 0.03Pa at 25℃ |
| refractive index |
n |
| Flash point | 121°C |
| storage temp. | Inert atmosphere,Room Temperature |
| form | liquid |
| color | colorless |
| Specific Gravity | 1.0771 |
| Viscosity | 5.7mm2/s |
| Water Solubility | 3mg/L at 20℃ |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 2940458 |
| InChI | 1S/C14H16O2Si/c1-15-17(16-2,13-9-5-3-6-10-13)14-11-7-4-8-12-14/h3-12H,1-2H3 |
| InChIKey | AHUXYBVKTIBBJW-UHFFFAOYSA-N |
| SMILES | CO[Si](OC)(c1ccccc1)c2ccccc2 |
| CAS DataBase Reference | 6843-66-9(CAS DataBase Reference) |
| FDA UNII | 02QB6788GC |
| NIST Chemistry Reference | Silane, dimethoxydiphenyl-(6843-66-9) |
| EPA Substance Registry System | Silane, dimethoxydiphenyl- (6843-66-9) |
| UNSPSC Code | 12352103 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H319-H315 | |||||||||
| Precautionary statements | P280g-P305+P351+P338-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 | |||||||||
| PPE | Eyeshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 38 | |||||||||
| Safety Statements | 28-37-24/25 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | VV3643332 | |||||||||
| F | 10-21 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29319090 | |||||||||
| Storage Class | 10 - Combustible liquids | |||||||||
| Hazard Classifications | Skin Irrit. 2 | |||||||||
| NFPA 704 |
|
Diphenyldimethoxysilane price More Price(26)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 42940 | Dimethoxydiphenylsilane ≥95.0% (GC) | 6843-66-9 | 100ml | $134 | 2026-04-30 | Buy |
| TCI Chemical | D1731 | Dimethoxydiphenylsilane >98.0%(GC) | 6843-66-9 | 25mL | $32 | 2026-04-30 | Buy |
| TCI Chemical | D1731 | Dimethoxydiphenylsilane >98.0%(GC) | 6843-66-9 | 100mL | $84 | 2026-04-30 | Buy |
| Strem Chemicals | 14-2500 | Diphenyldimethoxysilane, min. 97% | 6843-66-9 | 50g | $45 | 2024-03-01 | Buy |
| Strem Chemicals | 14-2500 | Diphenyldimethoxysilane, min. 97% | 6843-66-9 | 250g | $152 | 2024-03-01 | Buy |
Diphenyldimethoxysilane Chemical Properties,Uses,Production
Chemical Properties
Colorless clear liquid
Uses
Reagent for preparation of diphenylsilylene derivatives of diols by exchange.
Uses
DMDPS may be useful as a precursor to prepare silica.{58} Itmay be used in lithium ion batteries as an electrolyte additive. It prevents the batteries from overcharging.{59}
General Description
Dimethoxydiphenylsilane (DMDPS, DDS) is an acetylating reagent.{57}
Flammability and Explosibility
Non flammable
Synthesis
67-56-1
775-12-2
6843-66-9
General procedure: the synthesis was carried out using a standard catalytic CDC reaction scheme. In an inert atmosphere glove box, the precatalyst (0.05 mmol) was accurately weighed and added to a Schlenk tube, followed by the sequential addition of methanol (n × 0.05 mmol, n-equivalent) and diphenylsilane (n' × 0.05 mmol, n' equivalent). The reaction mixture was placed in a 30°C oil bath with constant temperature stirring for the reaction. Upon completion of the reaction, the reaction was quenched by the addition of CDCl3. The reaction mixture was analyzed using 1H NMR spectroscopy and the reaction conversion was monitored by comparing the relative intensities of the characteristic peaks of the substrate and the product.
References
[1] Australian Journal of Chemistry, 2017, vol. 70, # 6, p. 724 - 730
[2] Chemische Berichte, 1995, vol. 128, # 12, p. 1267 - 1270
[3] Journal of Organometallic Chemistry, 2004, vol. 689, # 20, p. 3258 - 3264
[4] ACS Catalysis, 2018, vol. 8, # 3, p. 2558 - 2566
[5] Chemistry Letters, 1973, p. 501 - 504
Diphenyldimethoxysilane Preparation Products And Raw materials
Raw materials
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Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Dongguan City Betterly New Materials co.,Ltd | +86-13713468294 | sadie@betely.com | China | 39 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5235 | 58 |
| Wuhan Kemi-Works Chemical Co., Ltd. | +86-2785736489 +8618171418573 | sales@kemiworks.com | China | 781 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20124 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 13843 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21590 | 55 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29819 | 58 |
Related articles
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- Nov 27，2025
View Lastest Price from Diphenyldimethoxysilane manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-04-30 | Diphenyldimethoxysilane
6843-66-9
|
US $0.00-0.00 / kg | 0.0001kg | 99% | 2000000kg | Anhuyan (Hainan) Biotechnology Co., LTD | |
 |
2026-03-20 | Diphenyldimethoxysilane
6843-66-9
|
US $10.00 / KG | 1KG | 99% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-09-25 | Diphenyldimethoxysilane
6843-66-9
|
US $8.00-0.80 / KG | 1KG | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd |
-
- Diphenyldimethoxysilane
6843-66-9
- US $0.00-0.00 / kg
- 99%
- Anhuyan (Hainan) Biotechnology Co., LTD
-
- Diphenyldimethoxysilane
6843-66-9
- US $10.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Diphenyldimethoxysilane
6843-66-9
- US $8.00-0.80 / KG
- 99%
- Henan Fengda Chemical Co., Ltd
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