Introduction：Basic information about CAS 1000-05-1|1,1,3,3,5,5,7,7-octamethyltetrasiloxane, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | 1,1,3,3,5,5,7,7-octamethyltetrasiloxane |
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| CAS Number | 1000-05-1 | Molecular Weight | 282.632 |
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| Density | 0.863 | Boiling Point | 205.1±23.0 °C at 760 mmHg |
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| Molecular Formula | C8H26O3Si4 | Melting Point | <0ºC |
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| MSDS | / | Flash Point | 77.8±22.6 °C |
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Names
| Name | [[(dimethyl-λ3-silanyl)oxy-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilicon |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 0.863 |
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| Boiling Point | 205.1±23.0 °C at 760 mmHg |
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| Melting Point | <0ºC |
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| Molecular Formula | C8H26O3Si4 |
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| Molecular Weight | 282.632 |
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| Flash Point | 77.8±22.6 °C |
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| Exact Mass | 282.095886 |
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| PSA | 27.69000 |
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| LogP | 7.69 |
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| Vapour Pressure | 0.4±0.4 mmHg at 25°C |
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| Index of Refraction | 1.3875 |
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| InChIKey | ILBWBNOBGCYGSU-UHFFFAOYSA-N |
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| SMILES | C[Si](C)O[Si](C)(C)O[Si](C)(C)O[Si](C)C |
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| Storage condition | 2~8℃ |
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Toxicological Information
CHEMICAL IDENTIFICATION - RTECS NUMBER :
- XF3902000
- CHEMICAL NAME :
- Tetrasiloxane, 1,1,3,3,5,5,7,7-octamethyl-
- CAS REGISTRY NUMBER :
- 1000-05-1
- LAST UPDATED :
- 199701
- DATA ITEMS CITED :
- 2
- MOLECULAR FORMULA :
- C8-H26-O2-Si4
HEALTH HAZARD DATAACUTE TOXICITY DATA - TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 9 gm/m3/6H/4W-I
- TOXIC EFFECTS :
- Liver - other changes Liver - changes in liver weight
- REFERENCE :
- TOXID9 Toxicologist. (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway, Akron, OH 44311) V.1- 1981- Volume(issue)/page/year: 15,182,1995
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Safety Information
| Hazard Codes | Xi |
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| Risk Phrases | 36/37/38 |
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| Safety Phrases | 26-36 |
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| RTECS | XF3902000 |
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| HS Code | 2934999090 |
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Customs
| HS Code | 2934999090 |
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| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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Synonyms
| Octamethyltetrasiloxane |
| EINECS 213-669-0 |
| 1,1,3,3,5,5,7,7-Octamethyl-tetrasiloxan |
| 1,1,3,3,5,5,7,7-octamethyltetrasiloxane |
| dihydro-1,1,3,3,5,5,7,7-octamethyltetrasiloxane |
| Tetrasiloxane, 1,1,3,3,5,5,7,7-octamethyl- |
| Tetrasiloxane,1,1,3,3,5,5,7,7-octamethyl |
| MFCD00039789 |
| 1,1,3,3,5,5,7,7-Octamethyl Tetrasiloxane |
