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Pigment Red 63 structure
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Pigment Red 63

TL;DR: Pigment Red 63 (CAS 21416-46-6) is a chemical compound with molecular formula C21H14N2O6S and molecular weight 422.05725 g/mol, supplied by CoreyChem (Career Henan Chemical Co., Ltd.) with ISO-certified quality and global shipping.

3-hydroxy-4-[(1-sulfonaphthalen-2-yl)diazenyl]naphthalene-2-carboxylic acid

Also Known As: Pigment Red 63, D&c Red No.34, D&C Red 34, PIGMENT RED 63 (C.I. 15880), 3-Hydroxy-4-(1-sulfo-2-naphthylazo)-2-naphthoic acid

CAS Number
21416-46-6
Molecular Formula
C21H14N2O6S
Molecular Weight
422.05725 g/mol
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Application Areas

Top 5 of 1 IPC patent classification(s) from the SureChEMBL global patent database.

Pharmaceutical Intermediates (1 patents)

Technical Specifications

Molecular FormulaC21H14N2O6S
Molecular Weight422.05725 g/mol
XLogP4.7
Topological Polar Surface Area (TPSA)145.0 Ų
Hydrogen Bond Donors3
Hydrogen Bond Acceptors8
Rotatable Bonds4
Exact Mass422.05725 Da
Heavy Atoms30
Complexity766.0
SMILESC1=CC=C2C(=C1)C=CC(=C2S(=O)(=O)O)N=NC3=C(C(=CC4=CC=CC=C43)C(=O)O)O
InChIKeyPWUSHZPXYOALFZ-UHFFFAOYSA-N

Chemical Property Profile of Pigment Red 63

XLogP
4.7
TPSA (Topological Polar Surface Area)
145.0
Hydrogen Bond Donors
3
Hydrogen Bond Acceptors
8
Rotatable Bonds
4
Heavy Atoms
30
Complexity
766.0
Exact Mass
422.05725
Monoisotopic Mass
422.05725
Data Source: Chemical property values are referenced from PubChem, the world's largest open chemistry database maintained by the National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine.

Property Insights of Pigment Red 63

The XLogP value of 4.7 indicates that Pigment Red 63 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 145.0 Ų indicates high polarity, suggesting Pigment Red 63 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Pigment Red 63 has 3 hydrogen bond donor(s) and 8 hydrogen bond acceptor(s), all within the drug-like range, suggesting favorable oral bioavailability potential.

Frequently Asked Questions

What is the CAS number of Pigment Red 63?

The CAS number of Pigment Red 63 is 21416-46-6.

What is the molecular formula of Pigment Red 63?

The molecular formula of Pigment Red 63 is C21H14N2O6S.

What is the molecular weight of Pigment Red 63?

The molecular weight of Pigment Red 63 is 422.05725 g/mol.

Where can I buy Pigment Red 63?

You can request a quote for Pigment Red 63 directly from CoreyChem. Contact us or email [email protected] for pricing and availability.

Does CoreyChem offer custom synthesis for Pigment Red 63?

Yes, CoreyChem provides custom synthesis services for Pigment Red 63 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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