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CAS 1873-88-7 1,1,1,3,5,5,5-Heptamethyltrisiloxane molecular structure lightbox
CAS RN: 1873-88-7

1,1,1,3,5,5,5-Heptamethyltrisiloxane

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13 package records12 with current stock3 grade groups
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20260526 100ml In stock Inquiry
Batchno.20260322 1L In stock Inquiry
Batchno.20260530 250ml Out of stock Inquiry
Batchno.20250827 25ml In stock Inquiry
Batchno.20251219 500ml In stock Inquiry
Batchno.20260523 50ml In stock Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20260405 100g In stock Shanghai, Shenzhen, Tianjin, Wuhan, Chengdu Inquiry
Batchno.20250407 1kg In stock Shanghai, Shenzhen Inquiry
Batchno.20250729 25g In stock Shanghai, Tianjin, Wuhan, Chengdu Inquiry
Batchno.20250727 25ml / 100ml / 250ml / 1L / 5L Confirm by inquiry Shanghai, Shandong, Guangdong, Chongqing Inquiry
Batchno.20260105 500g In stock Shanghai, Tianjin, Wuhan Inquiry
Batchno.20250929 5kg In stock Shanghai Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250331 25ml In stock Shanghai Inquiry
  • Product code: ICTH1267
  • Purity/Analytical Methods: >98.0%(GC)
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1873-88-7 / 1,1,1,3,5,5,5-Heptamethyltrisiloxane

Standard CAS: 1873-88-7 Multi CAS: No
Basic Information Physical Properties Computed Properties Safety & Transport

Basic Information

CAS
1873-88-7
Multi CAS
No
Molecular Formula
C7H21O2Si3
Molecular Weight
221.500000
Exact Mass
221.084935
SMILES
C[Si](O[Si](C)(C)C)O[Si](C)(C)C
InChI
InChI=1S/C7H21O2Si3/c1-10(8-11(2,3)4)9-12(5,6)7/h1-7H3
InChIKey
SWGZAKPJNWCPRY-UHFFFAOYSA-N

Physical Properties

Physical Description
Liquid
State
Liquid

Computed Properties

Structural Parameters

Heavy atom count
12
Fraction Csp3
1
Rotatable bonds
4
H-bond acceptors
2
Molar refractivity
60.48
TPSA
18.46

LogP / Solubility

WLOGP
2.81
MLOGP
2.47
XLogP3
2.81
Consensus LogP
2.7
Log S (ESOL)
-2.72
Class (ESOL)
Moderately soluble
Log S (Ali)
-3.4
Class (Ali)
Poorly soluble
Log S (SILICOS-IT)
-3.91
Class (SILICOS-IT)
Poorly soluble

ADME

GI absorption
High
BBB permeant
Yes
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
No
CYP2C9 inhibitor
No
CYP2D6 inhibitor
No
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-2.08

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
Yes
Bioavailability score
0.55
Brenk alerts
1
Leadlikeness
No
Synthetic Accessibility
1.5

Safety & Transport

Pictogram(s)
Flammable Irritant
Signal
Danger
GHS Hazard Statements
H225 (29.2%): Highly Flammable liquid and vapor [Danger Flammable liquids] H226 (70.8%): Flammable liquid and vapor [Warning Flammable liquids] H315 (29.2%): Causes skin irritation [Warning Skin corrosion/irritation] H319 (29.2%): Causes serious eye irritation [Warning Serious eye damage/eye irritation] H335 (28.6%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
Precautionary Statement Codes
P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501

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