Pigment Red 251
TL;DR: Pigment Red 251 (CAS 74336-60-0) is a chemical compound with molecular formula C25H13Cl2N5O3 and molecular weight 501.04 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.
1-[(5,7-dichloro-2-methyl-9-oxo-1H-pyrazolo[5,1-b]quinazolin-3-yl)diazenyl]anthracene-9,10-dione
Also Known As: Pigment Red 251, 1-[ azo]anthraquinone, Paliotol Red L 3550HD, C.I. 12925, 1-[(5,7-dichloro-1,9-dihydro-2-methyl-9-oxopyrazolo[5,1-b]quinazolin-3-yl)azo]anthraquinone
| Molecular Formula | C25H13Cl2N5O3 |
|---|---|
| Molecular Weight | 501.04 g/mol |
| LogP | 5.6 |
| Topological Polar Surface Area | 104.0 Ų |
| Hydrogen Bond Donors | 1 |
| Hydrogen Bond Acceptors | 7 |
| Rotatable Bonds | 2 |
| Exact Mass | 501.03955 |
| Heavy Atoms | 35 |
| Complexity | 1060.0 |
Chemical Identifiers
| CAS Number | 74336-60-0 |
|---|---|
| SMILES | CC1=C(C2=NC3=C(C=C(C=C3Cl)Cl)C(=O)N2N1)N=NC4=CC=CC5=C4C(=O)C6=CC=CC=C6C5=O |
| InChIKey | OOWAWKKKXJSMTD-UHFFFAOYSA-N |
Product Overview
Pigment Red 251 (CAS 74336-60-0), with molecular formula C25H13Cl2N5O3 and molecular weight 501.04 g/mol. IUPAC: 1-[(5,7-dichloro-2-methyl-9-oxo-1H-pyrazolo[5,1-b]quinazolin-3-yl)diazenyl]anthracene-9,10-dione.
Chemical Property Profile of Pigment Red 251
Property Insights of Pigment Red 251
The XLogP value of 5.6 indicates that Pigment Red 251 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 104.0 Ų falls within the moderate polarity range, balancing permeability and solubility for Pigment Red 251. Following Lipinski's Rule of Five, Pigment Red 251 has 1 hydrogen bond donor(s) and 7 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.
Frequently Asked Questions
Frequently Asked Questions
What is the CAS number of Pigment Red 251?
The CAS number of Pigment Red 251 is 74336-60-0.
What is the molecular formula of Pigment Red 251?
The molecular formula of Pigment Red 251 is C25H13Cl2N5O3.
What is the molecular weight of Pigment Red 251?
The molecular weight of Pigment Red 251 is 501.04 g/mol.
Where can I buy Pigment Red 251?
You can request a quote for Pigment Red 251 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.
Does KEHONG BIO offer custom synthesis for Pigment Red 251?
Yes, KEHONG BIO provides custom synthesis services for Pigment Red 251 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.