β-萘酚紫，CAS 登记号 7143-21-7，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，下游主要用于有机化学品。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。
有机化学品
每批随货提供 COA；可按需提供 MSDS 及技术文件。邮件注明产品名称与 CAS 号，一个工作日内回复报价。
本页已列出 β-萘酚紫 的 CAS 号：7143-21-7，可与随货 COA 核对。
常见纯度为 按批次COA提供(不公开发布)，包装形式为 按订单/批次确认(不公开发布)，特殊规格可在询价时说明。
主要涉及有机化学品。
来信 info@591daili.com 或 WhatsApp 联系，提供产品名称、CAS 号与数量，确认价格与交期后即可安排发货，验收以批次 COA 为准。
beta-Naphthol Violet · CAS 7143-21-7 · C16H9N3Na2O9S2. UNII NS00043713.
| CAS Registry Number | 7143-21-7 |
|---|---|
| PubChem CID | 3084003 |
| Molecular formula | C16H9N3Na2O9S2 |
| IUPAC name | disodium;3-hydroxy-4-[(4-nitrophenyl)diazenyl]naphthalene-2,7-disulfonate |
| UNII (FDA) | NS00043713 |
| Molecular Weight | 497.4 |
|---|---|
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 11 |
| Rotatable Bond Count | 2 |
| Exact Mass | 496.95755978 |
| Monoisotopic Mass | 496.95755978 |
| Topological Polar Surface Area | 222 |
| Heavy Atom Count | 32 |
| Formal Charge | 0 |
| Complexity | 840 |
| Reported hazard statements | H315 (100%), H319 (100%), H335 (100%) |
|---|
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
Disodium 3-hydroxy-4-((4-nitrophenyl)azo)naphthalene-2,7-disulphonate; EINECS 230-443-7; NSC 45540; Disodium 3-hydroxy-4-[(4-nitrophenyl)azo]naphthalene-2,7-disulphonate; RefChem:589336; 230-443-7; 7143-21-7; beta-NAPHTHOL VIOLET; Disodium 3-hydroxy-4-(4-nitrophenyl)azonaphthalene-2,7-disulphonate; Sodium 3-hydroxy-4-((4-nitrophenyl)diazenyl)naphthalene-2,7-disulfonate; MFCD00021457; disodium;3-hydroxy-4-[(4-nitrophenyl)diazenyl]naphthalene-2,7-disulfonate; |A-Naphthol Violet; 2-Naphthol violet; 3-hydroxy-4-[(4-nitrophenyl)diazenyl]naphthalene-2,7-disulfonic acid, sodium s alt, sodium salt; orb2566835
CAS 7143-21-7; molecular formula C16H9N3Na2O9S2; molecular weight — g/mol.
Disodium 3-hydroxy-4-((4-nitrophenyl)azo)naphthalene-2,7-disulphonate, EINECS 230-443-7, NSC 45540, Disodium 3-hydroxy-4-[(4-nitrophenyl)azo]naphthalene-2,7-disulphonate, RefChem:589336, 230-443-7.
Hazard statements reported: H315, H319, H335.
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.