Naphthol AS-IRG (CAS 4433-79-8) — formula C12H14ClNO4, molecular weight 271.69; category dyes and pigments.
Naphthol AS-IRG (CAS 4433-79-8) is a chemical raw material in the dyes and pigments category. Its molecular formula C12H14ClNO4 comprises 12 C, 14 H, 1 Cl, 1 N, 4 O atoms. Its molecular weight is about 271.69. Reported physicochemical data: LogP about 2.1. 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 | 4433-79-8 |
|---|---|
| Molecular Formula | C12H14ClNO4 |
| Molecular Weight | 271.69 |
| LogP | 2.1 |
| Applications | Pigment, Not Known or Reasonably Ascertainable, U.S. Production: 2023: 11, 023 lb, 2022: 281, 2021: 257 |
| Category | Dyes & Pigments |
Documented applications: Pigment, Not Known or Reasonably Ascertainable, U.S. Production: 2023: 11, 023 lb, 2022: 281, 2021: 257.
Naphthol AS-IRG is a colorant or pigment compound with CAS registry number 4433-79-8 and molecular formula C12H14ClNO4 (molecular weight 271.69), belonging to the dyes and pigments segment of chemical raw materials.
CAS number: 4433-79-8
Its molecular formula C12H14ClNO4 comprises 12 C, 14 H, 1 Cl, 1 N, 4 O atoms.
Also known as: Naphthol AS-IRG · 萘酚AS-IRG · Acetoacet-2,5-dimethoxy-4-chloroanilide · 4'-chloro-2',5'-dimethoxyacetoacetanilide
Category: dyes and pigments
The CAS registry number of Naphthol AS-IRG is 4433-79-8.
Molecular formula C12H14ClNO4, molecular weight 271.69.
It is also registered under: Naphthol AS-IRG, 萘酚AS-IRG, Acetoacet-2,5-dimethoxy-4-chloroanilide, 4'-chloro-2',5'-dimethoxyacetoacetanilide.
Recorded applications: Pigment, Not Known or Reasonably Ascertainable, U.S. Production: 2023: 11, 023 lb, 2022: 281, 2021: 257.
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 Naphthol AS-IRG (CAS 4433-79-8), compiled from public chemistry databases.
| CAS Registry Number | 4433-79-8 |
|---|---|
| PubChem CID | 78170 |
| Molecular formula | C12H14ClNO4 |
| IUPAC name | N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutanamide |
| UNII (FDA) | J086QHJ1OC |
| Molecular Weight | 271.69 |
|---|---|
| XLogP3 | 2.1 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 5 |
| Exact Mass | 271.0611356 |
| Monoisotopic Mass | 271.0611356 |
| Topological Polar Surface Area | 64.6 |
| Heavy Atom Count | 18 |
4433-79-8; 4'-Chloro-2',5'-dimethoxyacetoacetanilide; N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutanamide; Naphtol AS-IRG; Naphtol AS-LGLL; Naphtanilide LRG; Naphtazol 4J; Naphthol AS 13GH; DTXSID5029265; 2,5-Dimethoxy-4-chloroacetoacetanilide; C.I. 37613; Butanamide, N-(4-chloro-2,5-dimethoxyphenyl)-3-oxo-; UNII-J086QHJ1OC; EINECS 224-638-6; J086QHJ1OC; NSC 50638
| GHS notification summary | 5.5% (8 / 146) |
|---|
| GHS notification summary | 5.5% (8 / 146) |
|---|---|
| Reported hazard statements | H302 (94.5%), H412 (87.7%) |
This chemical does not meet GHS hazard criteria for 5.5% (8 of 146) of reports.
H302 (94.5%): Harmful if swallowed [Warning Acute toxicity, oral]
4'-chloro-2',5'-dimethoxyacetoacetanilide · CAS 4433-79-8 · C12H14ClNO4. UNII J086QHJ1OC.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 4'-氯-2',5'-二甲氧基乙酰乙酰苯胺