Pigment Red 21 (CAS 6410-26-0) — formula C23H16ClN3O2, molecular weight 401.8; category dyes and pigments.
Pigment Red 21 (CAS 6410-26-0) is a chemical raw material in the dyes and pigments category. Its molecular formula C23H16ClN3O2 comprises 23 C, 16 H, 1 Cl, 3 N, 2 O atoms. Its molecular weight is about 401.8. Reported physicochemical data: LogP about 6.6. 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 | 6410-26-0 |
|---|---|
| Molecular Formula | C23H16ClN3O2 |
| Molecular Weight | 401.8 |
| LogP | 6.6 |
| Applications | paints, inks, plastics, and as catalysts |
| Category | Dyes & Pigments |
Documented applications: paints, inks, plastics, and as catalysts.
Pigment Red 21 is a colorant or pigment compound with CAS registry number 6410-26-0 and molecular formula C23H16ClN3O2 (molecular weight 401.8), belonging to the dyes and pigments segment of chemical raw materials.
CAS number: 6410-26-0
Its molecular formula C23H16ClN3O2 comprises 23 C, 16 H, 1 Cl, 3 N, 2 O atoms.
Also known as: Pigment Red 21 · 颜料红21
Category: dyes and pigments
The CAS registry number of Pigment Red 21 is 6410-26-0.
Molecular formula C23H16ClN3O2, molecular weight 401.8.
It is also registered under: Pigment Red 21, 颜料红21.
Recorded applications: paints, inks, plastics, and as catalysts.
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 21 (CAS 6410-26-0), compiled from public chemistry databases.
| CAS Registry Number | 6410-26-0 |
|---|---|
| PubChem CID | 80854 |
| Molecular formula | C23H16ClN3O2 |
| IUPAC name | 4-[(2-chlorophenyl)diazenyl]-3-hydroxy-N-phenylnaphthalene-2-carboxamide |
| UNII (FDA) | NS00047512 |
| Molecular Weight | 401.8 |
|---|---|
| XLogP3 | 6.6 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 4 |
| Exact Mass | 401.0931045 |
| Monoisotopic Mass | 401.0931045 |
| Topological Polar Surface Area | 74.1 |
| Heavy Atom Count | 29 |
EINECS 229-096-4; 2-Naphthalenecarboxamide, 4-[(2-chlorophenyl)azo]-3-hydroxy-N-phenyl-; DTXSID6064329; 2-Naphthalenecarboxamide, 4-(2-(2-chlorophenyl)diazenyl)-3-hydroxy-N-phenyl-; 2-Naphthalenecarboxamide, 4-((2-chlorophenyl)azo)-3-hydroxy-N-phenyl-; 4-((2-Chlorophenyl)azo)-3-hydroxy-N-phenylnaphthalene-2-carboxamide; 4-[(2-chlorophenyl)azo]-3-hydroxy-N-phenylnaphthalene-2-carboxamide; 2-Naphthalenecarboxamide, 4-[2-(2-chlorophenyl)diazenyl]-3-hydroxy-N-phenyl-; RefChem:508976; DTXCID2044216; 229-096-4; 6410-26-0; 4-((2-Chlorophenyl)diazenyl)-3-hydroxy-N-phenyl-2-naphthamide; 4-[(2-chlorophenyl)diazenyl]-3-hydroxy-N-phenylnaphthalene-2-carboxamide; 2-Naphthalenecarboxamide,4-[(2-chlorophenyl)azo]-3-hydroxy-N-phenyl-; 4-[2-(2-Chlorophenyl)diazenyl]-3-hydroxy-N-phenyl-2-naphthalenecarboxamide
| GHS notification summary | 100% (30 / 30) |
|---|
| GHS notification summary | 100% (30 / 30) |
|---|
This chemical does not meet GHS hazard criteria for 100% (30 of 30) of all reports.
Reported as not meeting GHS hazard criteria by 30 of 30 companies. For more detailed information, please visit ECHA C&L website.
Pigment Red 21 · CAS 6410-26-0 · C23H16ClN3O2. UNII NS00047512.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 颜料红21