1,3-DICHLOROTETRAMETHYLDISILOXANE
- CAS No.
- 2401-73-2
- Chemical Name:
- 1,3-DICHLOROTETRAMETHYLDISILOXANE
- Synonyms
- 1,3-DICHLORO-1,1,3,3-TETRAMETHYLDISILOXANE;DK230;Oxybis(dimethylchlorosilane);Oxybis(chlorodimethylsilane);bis(chlorodimethylsilyl)ether;Bis(chlorodimethylsilyl) oxide;Sym-dichlorotetramethyldisiloxane;1,3-DICHLOROTETRAMETHYLDISILOXANE;Tetramethyl-1,3-dichlorodisiloxane;1,3-DICHLORO-1,1,3,3-TETRAMETHYLDISI
- CBNumber:
- CB2297482
- Molecular Formula:
- C4H12Cl2OSi2
- Molecular Weight:
- 203.21
- MDL Number:
- MFCD00018088
- MOL File:
- 2401-73-2.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 1,3-Dichloro-1,1,3,3-tetramethyldisiloxane 97% | 465585 | 25ml | $236 |
| 1,3-Dichloro-1,1,3,3-tetramethyldisiloxane >97.0%(GC) | D2334 | 5g | $69 |
| 1,3-Dichloro-1,1,3,3-tetramethyldisiloxane >97.0%(GC) | D2334 | 25g | $181 |
| 1,3-Dichlorotetramethyldisiloxane Asreported | 270966 | 25g | $359 |
| 1,3-Dichlorotetramethyldisiloxane Asreported | 270966 | 50g | $512 |
| More product size | |||
| Melting point | -37 °C |
|---|---|
| Boiling point | 138 °C (lit.) |
| Density | 1.039 g/mL at 25 °C (lit.) |
| refractive index |
n |
| Flash point | 15 °C |
| storage temp. | Flammables area |
| form | liquid |
| Specific Gravity | 1.038 |
| color | Colorless to Almost colorless |
| Water Solubility | Reacts with water. |
| Hydrolytic Sensitivity | 8: reacts rapidly with moisture, water, protic solvents |
| Sensitive | Moisture Sensitive |
| BRN | 1741218 |
| InChI | 1S/C4H12Cl2OSi2/c1-8(2,5)7-9(3,4)6/h1-4H3 |
| InChIKey | DMEXFOUCEOWRGD-UHFFFAOYSA-N |
| SMILES | C[Si](C)(Cl)O[Si](C)(C)Cl |
| CAS DataBase Reference | 2401-73-2(CAS DataBase Reference) |
| EPA Substance Registry System | Disiloxane, 1,3-dichloro-1,1,3,3-tetramethyl- (2401-73-2) |
| UNSPSC Code | 12352101 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H314 | |||||||||
| Precautionary statements | P210-P233-P240-P280-P303+P361+P353-P305+P351+P338 | |||||||||
| PPE | Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | F,C | |||||||||
| Risk Statements | 11-34 | |||||||||
| Safety Statements | 16-26-27-36/37/39-45 | |||||||||
| RIDADR | UN 2985 3/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 10-21 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29319090 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Flam. Liq. 2 Skin Corr. 1B |
|||||||||
| Excepted Quantities | Not Permitted as Excepted Quantity | |||||||||
| NFPA 704 |
|
1,3-DICHLOROTETRAMETHYLDISILOXANE price More Price(24)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 465585 | 1,3-Dichloro-1,1,3,3-tetramethyldisiloxane 97% | 2401-73-2 | 25ml | $236 | 2023-06-20 | Buy |
| TCI Chemical | D2334 | 1,3-Dichloro-1,1,3,3-tetramethyldisiloxane >97.0%(GC) | 2401-73-2 | 5g | $69 | 2026-04-30 | Buy |
| TCI Chemical | D2334 | 1,3-Dichloro-1,1,3,3-tetramethyldisiloxane >97.0%(GC) | 2401-73-2 | 25g | $181 | 2026-04-30 | Buy |
| Usbiological | 270966 | 1,3-Dichlorotetramethyldisiloxane Asreported | 2401-73-2 | 25g | $359 | 2026-06-03 | Buy |
| Usbiological | 270966 | 1,3-Dichlorotetramethyldisiloxane Asreported | 2401-73-2 | 50g | $512 | 2026-06-03 | Buy |
1,3-DICHLOROTETRAMETHYLDISILOXANE Chemical Properties,Uses,Production
Chemical Properties
clear colorless liquid
Uses
1,3-Dichlorotetramethyldisiloxane is used to produce 1,1,3,3-tetramethyl-disiloxane-1,3-diol. It is also used as Chemical Additives. Pharmaceutical intermediates.
Synthesis
3277-26-7
2401-73-2
General procedure: The chlorination reaction needs to be carried out in THF to ensure that all Si-H bonds are chlorinated, using TCCA as the chlorinating agent (molar ratio 1:1, TCCA:siloxane). This was done as follows: 1,1,3,3-tetramethyldisiloxane and THF (ratio 20 ml THF/g siloxane) were added to the reaction flask and the mixture was cooled to -20 °C. TCCA was added in batches with vigorous stirring, and after the addition of TCCA, stirring was continued for 15 min, after which the cooling bath was removed and the reaction mixture was allowed to warm slowly to room temperature. It should be noted that the chain length of the siloxane, the type of substituent and the position of the Si-H bond may affect the method of isolation and characterization of the subsequent products. Upon completion of the reaction, THF and unreacted TCCA should be removed immediately to avoid denaturation of the products during storage.
References
[1] Journal of Organometallic Chemistry, 2007, vol. 692, # 10, p. 1892 - 1897
[2] Journal of Organometallic Chemistry, 2018, vol. 875, p. 1 - 4
[3] Journal of the Chemical Society [Section] A: Inorganic, Physical, Theoretical, 1970, p. 1641 - 1642
1,3-DICHLOROTETRAMETHYLDISILOXANE Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 14026 | 58 |
| 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 | 29812 | 58 |
| Hubei Co-Formula Material Tech Co., Ltd. | +86-27-84459282 | sales@cfmats.com | CHINA | 882 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| Win-Win chemical CO., Limited | +86-0086-577-64498589 +86-15355981851 | sales@win-winchemical.com | China | 14304 | 58 |
| Finetech Industry Limited | +86-27-8746-5837 +8619945049750 | info@finetechnology-ind.com | China | 9539 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 +8617705817739 | info@dycnchem.com | China | 52704 | 58 |
| Hangzhou MolCore BioPharmatech Co.,Ltd. | +86-057181025280; +8617767106207 | sales@molcore.com | China | 49734 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18126 | 58 |
View Lastest Price from 1,3-DICHLOROTETRAMETHYLDISILOXANE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-07-02 | 1,3-DICHLOROTETRAMETHYLDISILOXANE
2401-73-2
|
1KG | 98.00% | 1000KG /month | Shanghai Daken Advanced Materials Co.,Ltd | ||
 |
2019-07-06 | 1,3-DICHLOROTETRAMETHYLDISILOXANE
2401-73-2
|
$2.00 | 1KG | 98% | Career Henan Chemical Co |
-
- 1,3-DICHLOROTETRAMETHYLDISILOXANE
2401-73-2
- $0.00
- 98.00%
- Shanghai Daken Advanced Materials Co.,Ltd
-
- 1,3-DICHLOROTETRAMETHYLDISILOXANE
2401-73-2
- $2.00
- 98%
- Career Henan Chemical Co
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