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CAS 143-74-8 Phenol Red (0.04% in Water) [for pH Determination] molecular structure lightbox
CAS RN: 143-74-8

Phenol Red (0.04% in Water) [for pH Determination]

Product Availability

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5 package records5 with current stock1 grade group
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250313 100g In stock Shanghai, Shenzhen, Tianjin, Chengdu Inquiry
Batchno.20251010 10g In stock Shanghai, Chengdu Inquiry
Batchno.20250921 25g In stock Shanghai, Shenzhen Inquiry
Batchno.20250911 500g In stock Shanghai Inquiry
Batchno.20250122 5g In stock Shanghai, Shenzhen, Tianjin, Chengdu Inquiry
  • Product code: SSC-054330
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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: 100g
  • 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 143-74-8
Pack Size Recorded Purity Available Qty Ship From Inquiry
100g ≥95% 0 Out of Stock Hong Kong Inquiry

143-74-8 / 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol

Standard CAS: 143-74-8 Multi CAS: No
Basic Information Physical Properties Computed Properties Safety & Transport

Basic Information

CAS
143-74-8
Multi CAS
No
Molecular Formula
C19H14O5S
Molecular Weight
354.400000
Exact Mass
354.056195
SMILES
C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O
InChI
InChI=1S/C19H14O5S/c20-15-9-5-13(6-10-15)19(14-7-11-16(21)12-8-14)17-3-1-2-4-18(17)25(22,23)24-19/h1-12,20-21H
InChIKey
BELBBZDIHDAJOR-UHFFFAOYSA-N

Physical Properties

Physical Description
Odorless, red solid; Available as pure compound, soluble monosodium salt, and dilute solutions; [CHEMINFO]
State
Solid

Computed Properties

Structural Parameters

Heavy atom count
25
Aromatic heavy atom count
18
Fraction Csp3
0.05
Rotatable bonds
2
H-bond acceptors
5
H-bond donors
2
Molar refractivity
90.81
TPSA
83.83

LogP / Solubility

WLOGP
3.11
MLOGP
2.75
XLogP3
3
Consensus LogP
2.95
Log S (ESOL)
-4.4
Class (ESOL)
Slightly soluble
Log S (Ali)
-4.71
Class (Ali)
Slightly soluble
Log S (SILICOS-IT)
-4.78
Class (SILICOS-IT)
Slightly soluble

ADME

GI absorption
High
BBB permeant
No
P-gp substrate
No
CYP1A2 inhibitor
Yes
CYP2C19 inhibitor
Yes
CYP2C9 inhibitor
No
CYP2D6 inhibitor
No
CYP3A4 inhibitor
Yes
Log Kp (skin permeation)
-2.67

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
Yes
Veber
Yes
Egan
Yes
Muegge
Yes
Bioavailability score
0.55
PAINS alerts
1
Brenk alerts
1
Leadlikeness
No
Synthetic Accessibility
3

Safety & Transport

Pictogram(s)
Irritant
Signal
Warning
GHS Hazard Statements
H315 (98.6%): Causes skin irritation [Warning Skin corrosion/irritation] H319 (42.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation] H335 (87.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
Precautionary Statement Codes
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

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