Pigment Red 21
颜料红21
Also known as: C.I. Pigment Red 21, C.I. 12300, 4-[(2-Chlorophenyl)azo]-3-hydroxy-N-phenyl-2-naphthalenecarboxamide, 4-[(2-chlorophenyl)azo]-3-hydroxy-N-phenylnaphthalene-2-carboxamide, 1-(2'-Chlorophenylazo)-2-hydroxy-3-naphthoanilid, Naphthol Red YR, Fast Scarlet 2R, Pigment Fast Scarlet 2R, Pigment Scarlet Powder, 2-Naphthalenecarboxamide, 4-[(2-chlorophenyl)azo]-3-hydroxy-N-phenyl-
- CAS No.
- 6410-26-0
- Jingsj CID
- J-32867-6
- Molecular Formula
- C23H16ClN3O2
- Chinese Name
- 颜料红21
- Molecular Weight
- 401.84500 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Boiling Point | 602.2ºC at 760 mmHg |
|---|---|
| Density | 1.31 |
Frequently Asked Questions
What is the CAS number of Pigment Red 21?
6410-26-0
What are the molecular formula and molecular weight of Pigment Red 21?
C23H16ClN3O2, molecular weight 401.84500 g/mol
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026