Introduction：Basic information about CAS 3277-26-7|1,1,3,3-Tetramethyldisiloxane, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | 1,1,3,3-Tetramethyldisiloxane |
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| CAS Number | 3277-26-7 | Molecular Weight | 134.324 |
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| Density | 0.76 g/mL at 25 °C(lit.) | Boiling Point | 70.8±9.0 °C at 760 mmHg |
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| Molecular Formula | C4H14OSi2 | Melting Point | <-78ºC |
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| MSDS | / | Flash Point | -3.4±18.7 °C |
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Names
| Name | (dimethyl-λ3-silanyl)oxy-dimethylsilicon |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 0.76 g/mL at 25 °C(lit.) |
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| Boiling Point | 70.8±9.0 °C at 760 mmHg |
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| Melting Point | <-78ºC |
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| Molecular Formula | C4H14OSi2 |
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| Molecular Weight | 134.324 |
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| Flash Point | -3.4±18.7 °C |
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| Exact Mass | 134.058319 |
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| PSA | 9.23000 |
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| LogP | 4.12 |
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| Vapour Pressure | 138.4±0.1 mmHg at 25°C |
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| Index of Refraction | n20/D 1.370(lit.) |
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| Storage condition | 2-8°C |
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| Water Solubility | DECOMPOSES |
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Toxicological Information
CHEMICAL IDENTIFICATION - RTECS NUMBER :
- JN1000000
- CHEMICAL NAME :
- Disiloxane, 1,1,3,3-tetramethyl-
- CAS REGISTRY NUMBER :
- 3277-26-7
- LAST UPDATED :
- 199701
- DATA ITEMS CITED :
- 3
- MOLECULAR FORMULA :
- C4-H14-O-Si2
HEALTH HAZARD DATAACUTE TOXICITY DATA - TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- 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: -,1221,1986
- TYPE OF TEST :
- LC50 - Lethal concentration, 50 percent kill
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 400 gm/m3/2H
- 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: -,1221,1986
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Safety Information
| Hazard Codes | F: Flammable; |
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| Risk Phrases | R11 |
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| Safety Phrases | S16-S26-S36-S9-S33-S29 |
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| RIDADR | UN 2924 3/PG 2 |
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| WGK Germany | 3 |
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| RTECS | JN1000000 |
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| Packaging Group | II |
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| Hazard Class | 3 |
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| HS Code | 29310095 |
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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
| Dimethylsilyl ether |
| [Me2Si(H)]2O |
| Bis(dimethylsilyl) oxide |
| Tetramethyldisiloxane |
| Disiloxane, 1,1,3,3-tetramethyl- |
| [HSi(Me2)]2O |
| EINECS 221-906-4 |
| sym-Tetramethyldisiloxane |
| 1,1,3,3-Tetramethyldisiloxane |
| 1,3-Dihydrotetramethyldisiloxane |
| HSiMe2OSiMe2H |
| DISILOXANE,1,1,3,3-TETRAMETHYL |
| MFCD00008256 |
| Bis(dimethylsilyl) ether |
