C.I. Pigment Red 38 structure

C.I. Pigment Red 38

TL;DR: C.I. Pigment Red 38 (CAS 6358-87-8) is a chemical compound with molecular formula C36H28Cl2N8O6 and molecular weight 738.15 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

ethyl 4-[[2-chloro-4-[3-chloro-4-[(3-ethoxycarbonyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]phenyl]phenyl]diazenyl]-5-oxo-1-phenyl-4H-pyrazole-3-carboxylate

Also Known As: C.I. Pigment Red 38, Pigment Red 38, Pyrazolone Red, Irgaplast Red P, Silotermo Red B

CAS: 6358-87-8
Molecular Formula C36H28Cl2N8O6
Molecular Weight 738.15 g/mol
LogP 8.2
Topological Polar Surface Area 167.0 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 12
Rotatable Bonds 13
Exact Mass 738.1509
Heavy Atoms 52
Complexity 1340.0

Chemical Identifiers

CAS Number 6358-87-8
SMILES CCOC(=O)C1=NN(C(=O)C1N=NC2=C(C=C(C=C2)C3=CC(=C(C=C3)N=NC4C(=NN(C4=O)C5=CC=CC=C5)C(=O)OCC)Cl)Cl)C6=CC=CC=C6
InChIKey PLYDMIIYRWUYBP-UHFFFAOYSA-N

Patent-Derived Application Labels

Derived from 4 IPC patent classification(s) across the SureChEMBL global patent database.

Coatings & Adhesives (2 patents) Construction Chemicals (1 patents) Plastic Additives (4 patents) Polymer Intermediates (3 patents)

Product Overview

C.I. Pigment Red 38 (CAS 6358-87-8), with molecular formula C36H28Cl2N8O6 and molecular weight 738.15 g/mol. IUPAC: ethyl 4-[[2-chloro-4-[3-chloro-4-[(3-ethoxycarbonyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]phenyl]phenyl]diazenyl]-5-oxo-1-phenyl-4H-pyrazole-3-carboxylate.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
View MSDS →

Chemical Property Profile of C.I. Pigment Red 38

XLogP
8.2
TPSA (Topological Polar Surface Area)
167.0
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
12
Rotatable Bonds
13
Heavy Atoms
52
Complexity
1340.0
Exact Mass
738.1509
Monoisotopic Mass
738.1509
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 C.I. Pigment Red 38

The XLogP value of 8.2 indicates that C.I. Pigment Red 38 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 167.0 Ų indicates high polarity, suggesting C.I. Pigment Red 38 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, C.I. Pigment Red 38 has 0 hydrogen bond donor(s) and 12 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.

Frequently Asked Questions

What is the typical lead time for this product?
Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.
Can you provide samples for testing?
Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.
What documentation do you provide with the product?
We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.
Do you ship internationally?
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location. Please contact us for specific shipping information.

Frequently Asked Questions

What is the CAS number of C.I. Pigment Red 38?

The CAS number of C.I. Pigment Red 38 is 6358-87-8.

What is the molecular formula of C.I. Pigment Red 38?

The molecular formula of C.I. Pigment Red 38 is C36H28Cl2N8O6.

What is the molecular weight of C.I. Pigment Red 38?

The molecular weight of C.I. Pigment Red 38 is 738.15 g/mol.

Where can I buy C.I. Pigment Red 38?

You can request a quote for C.I. Pigment Red 38 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for C.I. Pigment Red 38?

Yes, KEHONG BIO provides custom synthesis services for C.I. Pigment Red 38 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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