Introduction：Basic information about CAS 15721-05-8|HEPTAMETHYL CYCLOTETRASILOXANE, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | HEPTAMETHYL CYCLOTETRASILOXANE |
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| CAS Number | 15721-05-8 | Molecular Weight | 282.589 |
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| Density | 0.958 g/cm3 | Boiling Point | 174.3±23.0 °C at 760 mmHg |
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| Molecular Formula | C7H22O4Si4 | Melting Point | -27ºC |
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| MSDS | / | Flash Point | 59.2±22.6 °C |
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Names
| Name | 2,2,4,4,6,6,8-heptamethyl-1,3,5,7,2,4,6,8λ3-tetraoxatetrasilocane |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 0.958 g/cm3 |
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| Boiling Point | 174.3±23.0 °C at 760 mmHg |
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| Melting Point | -27ºC |
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| Molecular Formula | C7H22O4Si4 |
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| Molecular Weight | 282.589 |
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| Flash Point | 59.2±22.6 °C |
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| Exact Mass | 282.059509 |
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| PSA | 36.92000 |
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| LogP | 2.02210 |
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| Vapour Pressure | 1.6±0.3 mmHg at 25°C |
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| Index of Refraction | 1.3965 |
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| InChIKey | SNYNNFDVNITLRQ-UHFFFAOYSA-N |
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| SMILES | C[Si]1O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 |
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Toxicological Information
CHEMICAL IDENTIFICATION - RTECS NUMBER :
- GZ4391000
- CHEMICAL NAME :
- Cyclotetrasiloxane, heptamethyl-
- CAS REGISTRY NUMBER :
- 15721-05-8
- BEILSTEIN REFERENCE NO. :
- 1786647
- LAST UPDATED :
- 199612
- DATA ITEMS CITED :
- 1
- MOLECULAR FORMULA :
- C7-H22-O4-Si4
HEALTH HAZARD DATAACUTE TOXICITY DATA - TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 3 gm/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1228,1986
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Safety Information
| Risk Phrases | 10 |
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| Safety Phrases | 16 |
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| RIDADR | UN 1993 |
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| HS Code | 2901100000 |
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Customs
| HS Code | 2901100000 |
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| Summary | 2901100000 saturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
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Synonyms
| Heptamethylcyclotetrasiloxane |
| 2,4,4,6,6,8,8-Heptamethylcyclotetrasiloxan |
| 1,3,3,5,5,7,7-Heptamethylcyclotetrasiloxan |
| 2,2,4,4,6,6,8-Heptamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane |
| Cyclotetrasiloxane, 2,2,4,4,6,6,8-heptamethyl- |
| CYCLOTETRASILOXANE,HEPTAMETHYL |
| 1,3,3,5,5,7,7-heptamethylcyclotetrasiloxane |
| 2,2,4,4,6,6,8-heptamethyl-1,3,5,7,2,4,6,8 |
| Heptamethyl-cyclotetrasiloxan |
