Pigment Red 13 (CAS 6535-47-3) — formula C25H20N4O4, molecular weight 440.4; category dyes and pigments.
Pigment Red 13 (CAS 6535-47-3) is a chemical raw material in the dyes and pigments category. Its molecular formula C25H20N4O4 comprises 25 C, 20 H, 4 N, 4 O atoms. Its molecular weight is about 440.4. Reported physicochemical data: LogP about 6.5. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 6535-47-3 |
|---|---|
| Molecular Formula | C25H20N4O4 |
| Molecular Weight | 440.4 |
| LogP | 6.5 |
| Applications | 2-Naphthalenecarboxamide, 3-hydroxy-4-[2-(4-methyl-2-nitrophenyl)diazenyl]-N-(2-methylphenyl)-: ACTIVE |
| Category | Dyes & Pigments |
Documented applications: 2-Naphthalenecarboxamide, 3-hydroxy-4-[2-(4-methyl-2-nitrophenyl)diazenyl]-N-(2-methylphenyl)-: ACTIVE.
Pigment Red 13 is a colorant or pigment compound with CAS registry number 6535-47-3 and molecular formula C25H20N4O4 (molecular weight 440.4), belonging to the dyes and pigments segment of chemical raw materials.
CAS number: 6535-47-3
Its molecular formula C25H20N4O4 comprises 25 C, 20 H, 4 N, 4 O atoms.
Also known as: Pigment Red 13 · 颜料红13
Category: dyes and pigments
The CAS registry number of Pigment Red 13 is 6535-47-3.
Molecular formula C25H20N4O4, molecular weight 440.4.
It is also registered under: Pigment Red 13, 颜料红13.
Recorded applications: 2-Naphthalenecarboxamide, 3-hydroxy-4-[2-(4-methyl-2-nitrophenyl)diazenyl]-N-(2-methylphenyl)-: ACTIVE.
Category: Dyes & Pigments.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Pigment Red 13 (CAS 6535-47-3), compiled from public chemistry databases.
| CAS Registry Number | 6535-47-3 |
|---|---|
| PubChem CID | 81022 |
| Molecular formula | C25H20N4O4 |
| IUPAC name | 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(2-methylphenyl)naphthalene-2-carboxamide |
| UNII (FDA) | HGD76SLY64 |
| Molecular Weight | 440.4 |
|---|---|
| XLogP3 | 6.5 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 4 |
| Exact Mass | 440.14845513 |
| Monoisotopic Mass | 440.14845513 |
| Topological Polar Surface Area | 120 |
| Heavy Atom Count | 33 |
3-Hydroxy-4-[2-(4-methyl-2-nitrophenyl)diazenyl]-N-(2-methylphenyl)-2-naphthalenecarboxamide; DTXSID6064404; 3-Hydroxy-4-((4-methyl-2-nitrophenyl)azo)-N-(o-tolyl)naphthalene-2-carboxamide; 3-hydroxy-4-[(4-methyl-2-nitrophenyl)azo]-N-(o-tolyl)naphthalene-2-carboxamide; 3-Hydroxy-4-(2-(4-methyl-2-nitrophenyl)diazenyl)-N-(2-methylphenyl)-2-naphthalenecarboxamide; RefChem:502388; DTXCID3044590; 229-441-9; 6535-47-3; 2-Naphthalenecarboxamide, 3-hydroxy-4-[(4-methyl-2-nitrophenyl)azo]-N-(2-methylphenyl)-; 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(2-methylphenyl)naphthalene-2-carboxamide; 2-Naphthalenecarboxamide,3-hydroxy-4-[(4-methyl-2-nitrophenyl)azo]-N-(2-methylphenyl)-; 2-Naphthalenecarboxamide, 3-hydroxy-4-((4-methyl-2-nitrophenyl)azo)-N-(2-methylphenyl)-; EINECS 229-441-9; 2-Naphthalenecarboxamide, 3-hydroxy-4-(2-(4-methyl-2-nitrophenyl)diazenyl)-N-(2-methylphenyl)-; 2-Naphthalenecarboxamide, 3-hydroxy-4-[2-(4-methyl-2-nitrophenyl)diazenyl]-N-(2-methylphenyl)-
| GHS notification summary | 100% (22 / 22) |
|---|
| GHS notification summary | 100% (22 / 22) |
|---|
This chemical does not meet GHS hazard criteria for 100% (22 of 22) of all reports.
Reported as not meeting GHS hazard criteria by 22 of 22 companies. For more detailed information, please visit ECHA C&L website.
Pigment Red 13 · CAS 6535-47-3 · C25H20N4O4. UNII HGD76SLY64.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 颜料红13