235695
Octamethylcyclotetrasiloxane
98%
Manufacturer: Sigma Aldrich
CAS Number: 556-67-2
Synonym(S): 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane, octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 25 G | 235695-25-G | In Stock | ₹ 5,011.98 |
| 100 G | 235695-100-G | In Stock | ₹ 12,437.93 |
235695 - 25 G
In Stock
Quantity
1
Base Price: ₹ 5,011.98
GST (18%): ₹ 902.156
Total Price: ₹ 5,914.136
vapor density
1 (vs air)
Quality Level
200
Assay
98%
form
liquid
refractive index
n20/D 1.396 (lit.)
bp
175-176 °C (lit.)
mp
17-18 °C (lit.)
density
0.956 g/mL at 25 °C (lit.)
SMILES string
C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
InChI
1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3
Other Options
| Image | Product Name | Manufacturer | Price Range | |
|---|---|---|---|---|
 | D4 Cyclomethicone Pharmaceutical Secondary Standard, MilliporeSigma™ Supelco™ | MilliporeSigma Supelco | ₹ 12,543.10 | |
| | Octamethylcyclotetrasiloxane, ≥97.0% (GC), MilliporeSigma™ Supelco™ | MilliporeSigma Supelco | ₹ 12,457.54 | |
 | Sigma Aldrich Fine Chemicals Biosciences Octamethylcyclotetrasiloxane | 556-67-2 | MFCD00003269 | 25g | Sigma Aldrich Fine Chemicals Biosciences | ₹ 6,921.80 | |
 | Octamethylcyclotetrasiloxane | Supelco | ₹ 10,370.35 | |
| | D4 Cyclomethicone | Supelco | ₹ 10,911.60 | |
| | Cyclomethicone 4 | Sigma Aldrich | ₹ 51,916.70 | |
 | Octamethylcyclotetrasiloxane | Sigma Aldrich | ₹ 3,237.69 - ₹ 13,650.00 | |
 | 556-67-2 | Octamethylcyclotetrasiloxane | A2B Chem | ₹ 1,882.32 |
Related Products
Description
- General description: Octamethylcyclotetrasiloxane (D4) is a volatile methylsiloxane (VMS) with a relatively low molecular weight. This silicone fluid has a silicon-oxygen bond in a cyclic arrangement and methyl groups are attached to the silicon atom. D4 can be used in the manufacture of silicone based polymers for use in medical devices and personal care products.[1][2][3]
- Application: D4 can be polymerized through ring opening mechanism with a rare earth solid super acid as a catalyst for potential usage in the synthesis of vinyl coated polydimethylsiloxane (PDMS).[4] It may also be used as a probe liquid for nuclear magnetic resonance cryoporometry (NMRC) to analyze the pore size distribution (PSD) of oil-bearing tight sandstone.[5] Chemical vapor deposition (CVD) of D4 may be utilized for the preparation of siloxane based thin films.[6]
SAFETY INFORMATION
Pictograms
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 3 - Repr. 2
WGK
WGK 3
Flash Point(F)
closed cup
Flash Point(C)
closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Compare Similar Items
Show Difference
vapor density: 1 (vs air)
Quality Level: 200
Assay: 98%
form: liquid
refractive index: n20/D 1.396 (lit.)
bp: 175-176 °C (lit.)
mp: 17-18 °C (lit.)
density: 0.956 g/mL at 25 °C (lit.)
SMILES string: C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
InChI: 1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3
vapor density:
1 (vs air)
Quality Level:
200
Assay:
98%
form:
liquid
refractive index:
n20/D 1.396 (lit.)
bp:
175-176 °C (lit.)
mp:
17-18 °C (lit.)
density:
0.956 g/mL at 25 °C (lit.)
SMILES string:
C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
InChI:
1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3
vapor density: >1 (vs air)
Quality Level: 100
Assay: 98%
form: liquid
refractive index: n20/D 1.384 (lit.)
bp: 153 °C (lit.)
mp: −82 °C (lit.)
density: 0.82 g/mL at 25 °C (lit.)
SMILES string: C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
InChI: 1S/C8H24O2Si3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h1-8H3
vapor density:
>1 (vs air)
Quality Level:
100
Assay:
98%
form:
liquid
refractive index:
n20/D 1.384 (lit.)
bp:
153 °C (lit.)
mp:
−82 °C (lit.)
density:
0.82 g/mL at 25 °C (lit.)
SMILES string:
C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
InChI:
1S/C8H24O2Si3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h1-8H3
vapor density: >1 (vs air)
Quality Level: 100
Assay: 97%
form: liquid
refractive index: n20/D 1.447 (lit.)
bp: 233 °C/731 mmHg (lit.)
mp: __
density: 1.07 g/mL at 25 °C (lit.)
SMILES string: CCCCCCCC[Si](Cl)(Cl)Cl
InChI: 1S/C8H17Cl3Si/c1-2-3-4-5-6-7-8-12(9,10)11/h2-8H2,1H3
vapor density:
>1 (vs air)
Quality Level:
100
Assay:
97%
form:
liquid
refractive index:
n20/D 1.447 (lit.)
bp:
233 °C/731 mmHg (lit.)
mp:
__
density:
1.07 g/mL at 25 °C (lit.)
SMILES string:
CCCCCCCC[Si](Cl)(Cl)Cl
InChI:
1S/C8H17Cl3Si/c1-2-3-4-5-6-7-8-12(9,10)11/h2-8H2,1H3
vapor density: >1 (vs air)
Quality Level: 100
Assay: 97%
form: liquid
refractive index: n20/D 1.447 (lit.)
bp: 233 °C/731 mmHg (lit.)
mp: __
density: 1.07 g/mL at 25 °C (lit.)
SMILES string: CCCCCCCC[Si](Cl)(Cl)Cl
InChI: 1S/C8H17Cl3Si/c1-2-3-4-5-6-7-8-12(9,10)11/h2-8H2,1H3
vapor density:
>1 (vs air)
Quality Level:
100
Assay:
97%
form:
liquid
refractive index:
n20/D 1.447 (lit.)
bp:
233 °C/731 mmHg (lit.)
mp:
__
density:
1.07 g/mL at 25 °C (lit.)
SMILES string:
CCCCCCCC[Si](Cl)(Cl)Cl
InChI:
1S/C8H17Cl3Si/c1-2-3-4-5-6-7-8-12(9,10)11/h2-8H2,1H3