酸性黄49，CAS 登记号 12239-15-5，由济南圣和化工有限公司现货供应，可提供纯度 按批次COA提供(不公开发布) 的规格，下游主要用于染料及颜料。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。
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本页已列出 酸性黄49 的 CAS 号：12239-15-5，可与随货 COA 核对。
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Acid Yellow 49 · CAS 12239-15-5 · C16H13Cl2N5O3S. UNII NS00052465.
| CAS Registry Number | 12239-15-5 |
|---|---|
| PubChem CID | 25537 |
| Molecular formula | C16H13Cl2N5O3S |
| IUPAC name | 4-[(5-amino-3-methyl-1-phenylpyrazol-4-yl)diazenyl]-2,5-dichlorobenzenesulfonic acid |
| UNII (FDA) | NS00052465 |
| Molecular Weight | 426.3 |
|---|---|
| XLogP3 | 3.7 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 4 |
| Exact Mass | 425.0116159 |
| Monoisotopic Mass | 425.0116159 |
| Topological Polar Surface Area | 131 |
| Heavy Atom Count | 27 |
| Formal Charge | 0 |
| GHS notification summary | 24.6% (31 / 126) |
|---|
| GHS notification summary | 24.6% (31 / 126) |
|---|---|
| Reported hazard statements | H302 (30.2%), H319 (73.8%) |
This chemical does not meet GHS hazard criteria for 24.6% (31 of 126) of reports.
H302 (30.2%): Harmful if swallowed [Warning Acute toxicity, oral]
4-[(5-amino-3-methyl-1-phenyl-1h-pyrazol-4-yl)azo]-2,5-dichlorobenzenesulphonic acid; Benzenesulfonic acid, 4-((5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo)-2,5-dichloro-; Benzenesulfonic acid, 4-(2-(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)-2,5-dichloro-; 4-((5-Amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo)-2,5-dichlorobenzenesulphonic acid; Benzenesulfonic acid, 4-[(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo]-2,5-dichloro-; Benzenesulfonic acid, 4-[2-(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-2,5-dichloro-; RefChem:509607; benzenesulfonic acid, 4-(5-amino-3-methyl-1-phenyl-1h-pyrazol-4-yl)azo-2,5-dichloro-; 235-473-4; 12239-15-5; C.I. ACID YELLOW 49; ACID YELLOW 49; 4-[(5-amino-3-methyl-1-phenylpyrazol-4-yl)diazenyl]-2,5-dichlorobenzenesulfonic acid; 4-[2-(5-Amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-2,5-dichlorobenzenesulfonic acid; EINECS 235-473-4; orb2566721
CAS 12239-15-5; molecular formula C16H13Cl2N5O3S; molecular weight — g/mol.
4-[(5-amino-3-methyl-1-phenyl-1h-pyrazol-4-yl)azo]-2,5-dichlorobenzenesulphonic acid, Benzenesulfonic acid, 4-((5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo)-2,5-dichloro-, Benzenesulfonic acid, 4-(2-(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)-2,5-dichloro-, 4-((5-Amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo)-2,5-dichlorobenzenesulphonic acid, Benzenesulfonic acid, 4-[(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo]-2,5-dichloro-, Benzenesulfonic acid, 4-[2-(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-2,5-dichloro-.
24.6% of GHS notifications report no hazard classification (31 of 126).
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.