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CAS 1787-61-7 Eriochrome Black T molecular structure lightbox
CAS RN: 1787-61-7

Eriochrome Black T

Product Availability

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11 package records10 with current stock6 grade groups
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250204 100ml In stock Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20260113 100g In stock Inquiry
Batchno.20251020 500g In stock Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20251113 100ml In stock Shanghai, Shandong, Chongqing, Hebei Inquiry
Batchno.20260316 500ml In stock Shandong Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250607 100ml In stock Shanghai, Shandong, Guangdong, Chongqing, Hebei Inquiry
Batchno.20250107 500ml In stock Shanghai, Shandong, Guangdong, Chongqing Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250702 1g / 5g Out of stock 8-10 business days Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250920 100g In stock Shanghai, Shenzhen, Tianjin, Wuhan, Chengdu Inquiry
Batchno.20251125 1kg In stock Shanghai Inquiry
Batchno.20260615 500g In stock Shanghai, Wuhan Inquiry
  • Product code: SSC-079524
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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 1787-61-7
Pack Size Recorded Purity Available Qty Ship From Inquiry
500g ≥95% 0 Out of Stock Shenzhen Inquiry

1787-61-7 / sodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]-7-nitronaphthalene-1-sulfonate

Standard CAS: 1787-61-7 Multi CAS: No
Basic Information Computed Properties

Basic Information

CAS
1787-61-7
Multi CAS
No
Molecular Formula
C20H12N3NaO7S
Molecular Weight
461.400000
Exact Mass
461.029365
SMILES
C1=CC=C2C(=C1)C=CC(=C2O)N=NC3=C4C=CC(=CC4=C(C=C3O)S(=O)(=O)[O-])[N+](=O)[O-].[Na+]
InChI
InChI=1S/C20H13N3O7S.Na/c24-17-10-18(31(28,29)30)15-9-12(23(26)27)6-7-14(15)19(17)22-21-16-8-5-11-3-1-2-4-13(11)20(16)25;/h1-10,24-25H,(H,28,29,30);/q;+1/p-1
InChIKey
AMMWFYKTZVIRFN-UHFFFAOYSA-M

Computed Properties

Structural Parameters

Heavy atom count
32
Aromatic heavy atom count
20
Rotatable bonds
4
H-bond acceptors
9
H-bond donors
2
Molar refractivity
110.02
TPSA
165.52

LogP / Solubility

WLOGP
1.64
MLOGP
1.47
XLogP3
1.64
Consensus LogP
1.58
Log S (ESOL)
-3.93
Class (ESOL)
Poorly soluble
Log S (Ali)
-4.52
Class (Ali)
Slightly soluble
Log S (SILICOS-IT)
-4.5
Class (SILICOS-IT)
Slightly soluble

ADME

GI absorption
Low
BBB permeant
No
P-gp substrate
No
CYP1A2 inhibitor
Yes
CYP2C19 inhibitor
No
CYP2C9 inhibitor
No
CYP2D6 inhibitor
Yes
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-4.37

Drug-likeness / Medicinal Chemistry

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

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