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CAS 620-42-8 Tri-p-tolyl Phosphite molecular structure lightbox
CAS RN: 620-42-8

Tri-p-tolyl Phosphite

Product Availability

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2 package records2 with current stock1 grade group
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20260217 100g In stock Shanghai Inquiry
Batchno.20260523 25g In stock Shanghai, Shandong, Chongqing Inquiry
  • Product code: SSC-171021
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Historical Factory Record

Historical Supply Reference

This product has historical factory records. Recorded pack sizes and purity can be used as a supply reference, while project-specific availability is confirmed by inquiry.

  • Pack sizes on record: 500g
  • Available purity: ≥95%
  • Inventory rows with stock: 0
  • Bulk packaging: confirmed by inquiry
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Reference Pack Sizes

Reference pack sizes are shown below. Final availability, packaging and delivery schedule are confirmed by inquiry.

Recorded sizes, purity and stock details for CAS 620-42-8
Pack Size Recorded Purity Available Qty Ship From Inquiry
500g ≥95% 0 Out of Stock Beijing Inquiry

620-42-8 / tris(4-methylphenyl) phosphite

Standard CAS: 620-42-8 Multi CAS: No
Basic Information Physical Properties Computed Properties

Basic Information

CAS
620-42-8
Multi CAS
No
Molecular Formula
C21H21O3P
Molecular Weight
352.400000
Exact Mass
352.122832
InChI
InChI=1S/C21H21O3P/c1-16-4-10-19(11-5-16)22-25(23-20-12-6-17(2)7-13-20)24-21-14-8-18(3)9-15-21/h4-15H,1-3H3
InChIKey
FEVFLQDDNUQKRY-UHFFFAOYSA-N

Physical Properties

Physical Description
Dry Powder, Liquid; Liquid
State
Solid

Computed Properties

Structural Parameters

Heavy atom count
25
Aromatic heavy atom count
18
Fraction Csp3
0.14
Rotatable bonds
6
H-bond acceptors
3
Molar refractivity
102.34
TPSA
27.69

LogP / Solubility

WLOGP
6.38
MLOGP
5.63
XLogP3
6.6
Consensus LogP
6.2
Log S (ESOL)
-6.18
Class (ESOL)
Insoluble
Log S (Ali)
-7.05
Class (Ali)
Insoluble
Log S (SILICOS-IT)
-7.96
Class (SILICOS-IT)
Insoluble

ADME

GI absorption
Low
BBB permeant
No
P-gp substrate
No
CYP1A2 inhibitor
Yes
CYP2C19 inhibitor
Yes
CYP2C9 inhibitor
Yes
CYP2D6 inhibitor
No
CYP3A4 inhibitor
Yes
Log Kp (skin permeation)
-0.34

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
No
Veber
Yes
Egan
No
Muegge
No
Bioavailability score
0.55
Brenk alerts
1
Leadlikeness
No
Synthetic Accessibility
2.5

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