C.I. Pigment Red 4 (CAS 2814-77-9) — formula C16H10ClN3O3, molecular weight 327.72; category dyes and pigments.
C.I. Pigment Red 4 (CAS 2814-77-9) is a chemical raw material in the dyes and pigments category. Its molecular formula C16H10ClN3O3 comprises 16 C, 10 H, 1 Cl, 3 N, 3 O atoms. Its molecular weight is about 327.72. Reported physicochemical data: melting point around 276 °C, LogP about 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 | 2814-77-9 |
|---|---|
| Molecular Formula | C16H10ClN3O3 |
| Molecular Weight | 327.72 |
| Melting Point | 276 °C |
| LogP | 5 |
| Applications | paints, inks, plastics, and as catalysts |
| Category | Dyes & Pigments |
Documented applications: paints, inks, plastics, and as catalysts.
C.I. Pigment Red 4 is a colorant or pigment compound with CAS registry number 2814-77-9 and molecular formula C16H10ClN3O3 (molecular weight 327.72), belonging to the dyes and pigments segment of chemical raw materials.
CAS number: 2814-77-9
Its molecular formula C16H10ClN3O3 comprises 16 C, 10 H, 1 Cl, 3 N, 3 O atoms.
Also known as: C.I. Pigment Red 4 · C.I.颜料红4
Category: dyes and pigments
The CAS registry number of C.I. Pigment Red 4 is 2814-77-9.
Molecular formula C16H10ClN3O3, molecular weight 327.72.
It is also registered under: C.I. Pigment Red 4, C.I.颜料红4.
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 C.I. Pigment Red 4 (CAS 2814-77-9), compiled from public chemistry databases.
| CAS Registry Number | 2814-77-9 |
|---|---|
| PubChem CID | 17778 |
| Molecular formula | C16H10ClN3O3 |
| IUPAC name | 1-[(2-chloro-4-nitrophenyl)diazenyl]naphthalen-2-ol |
| UNII (FDA) | OE8ZA0KN9Z |
| Molecular Weight | 327.72 |
|---|---|
| XLogP3 | 5 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 2 |
| Exact Mass | 327.0410689 |
| Monoisotopic Mass | 327.0410689 |
| Topological Polar Surface Area | 90.8 |
| Heavy Atom Count | 23 |
| Melting Point | 276 °C |
|---|---|
| Color Additive Status | 74.1336 |
| Color Additive Status | 74.2336 |
| Color Additive Status | 82.1336 |
1-((2-Chloro-4-nitrophenyl)azo)-2-naphthol; 1-[(2-Chloro-4-nitrophenyl)azo]-2-naphthol; 220-562-2; RefChem:572551; 2814-77-9; D and C Red No. 36; D&C Red No. 36; CI 12085; OE8ZA0KN9Z; Flaming Red; Permanent Red R; 2-Naphthalenol, 1-((2-chloro-4-nitrophenyl)azo)-; Carnelio Red R; MFCD00059095; 1-[(2-chloro-4-nitrophenyl)diazenyl]naphthalen-2-ol; Flame tones
| Regulatory & Food Contact | FDA Regulatory Status of Color Additives: Drugs, Cosmetics CIR / INCI: Hair dyeing; Cosmetic colorant |
|---|---|
| GHS notification summary | 87.1% (270 / 310) |
| GHS notification summary | 87.1% (270 / 310) |
|---|---|
| Reported hazard statements | H319 (12.9%), H413 (12.3%) |
This chemical does not meet GHS hazard criteria for 87.1% (270 of 310) of all reports.
H319 (12.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
C.I. Pigment Red 4 · CAS 2814-77-9 · C16H10ClN3O3. UNII OE8ZA0KN9Z. Melting Point: 276 °C; Color Additive Status: 74.1336; Color Additive Status: 74.2336.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: C.I.颜料红4