二甲苯胺丽春红2R（CAS 3761-53-3）：分子式 C18H14N2Na2O7S2、分子量 480.4。
| CAS号 | 3761-53-3 |
|---|---|
| 分子式 | C18H14N2Na2O7S2 |
| 分子量 | 480.4 |
| 应用领域 | Uses: Substance listed with specific concentration in tattoo ink and、or permanent make up according to EU Commission Regulation 2020、2081. The concentration limit (by weight) is 0.1%.、Use Classification: Food Additives -> COLOUR -> JECFA Functional Classes、Food Additives -> COLOUR -> JECFA Functional Classes、General Manufacturing Information: 2、7-Naphthalenedisulfonic acid、4-[2-(2、4-dimethylphenyl)diazenyl]-3-hydroxy-、sodium salt (1:2): ACTIVE |
登记用途：Uses: Substance listed with specific concentration in tattoo ink and、or permanent make up according to EU Commission Regulation 2020、2081. The concentration limit (by weight) is 0.1%.、Use Classification: Food Additives -> COLOUR -> JECFA Functional Classes、Food Additives -> COLOUR -> JECFA Functional Classes、General Manufacturing Information: 2、7-Naphthalenedisulfonic acid、4-[2-(2、4-dimethylphenyl)diazenyl]-3-hydroxy-、sodium salt (1:2): ACTIVE。
二甲苯胺丽春红2R 是一种化工化合物，登记 CAS 号为 3761-53-3，分子式 C18H14N2Na2O7S2（分子量 480.4）。
登记 CAS 号：3761-53-3
其分子式 C18H14N2Na2O7S2 由 18 个碳、14 个氢、2 个氮、2 个钠、7 个氧、2 个硫 组成。
别名/同义词：二甲苯胺丽春红2R · Xylidine Ponceau 2R
二甲苯胺丽春红2R 的 CAS 登记号为 3761-53-3。
分子式 C18H14N2Na2O7S2，分子量 480.4。
别名/同义词：二甲苯胺丽春红2R、Xylidine Ponceau 2R。
登记用途：Uses: Substance listed with specific concentration in tattoo ink and、or permanent make up according to EU Commission Regulation 2020、2081. The concentration limit (by weight) is 0.1%.、Use Classification: Food Additives -> COLOUR -> JECFA Functional Classes、Food Additives -> COLOUR -> JECFA Functional Classes、General Manufacturing Information: 2、7-Naphthalenedisulfonic acid、4-[2-(2、4-dimethylphenyl)diazenyl]-3-hydroxy-、sodium salt (1:2): ACTIVE。
二甲苯胺丽春红2R（CAS 3761-53-3）的独立参考数据，整理自公开化学数据库。
| CAS Registry Number | 3761-53-3 |
|---|---|
| PubChem CID | 19579 |
| Molecular formula | C18H14N2Na2O7S2 |
| IUPAC name | disodium;4-[(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,6-disulfonate |
| Molecular Weight | 480.4 |
|---|---|
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 9 |
| Rotatable Bond Count | 2 |
| Exact Mass | 480.00378170 |
| Monoisotopic Mass | 480.00378170 |
| Topological Polar Surface Area | 176 |
| Heavy Atom Count | 31 |
| Solubility | 1 to 10 mg/mL at 68 °F (NTP, 1992) |
|---|
DTXSID8021228; RefChem:1076034; DTXCID301474356; 3761-53-3; 4-((2,4-Dimethylphenyl)azo)-3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt; Acid Red 26; C.I. Food Red 5; CHEBI:82369; Ponceau de xylidine; Ponceau Red R; SCHEMBL133302; SCHEMBL1637104; OIQRYZXXBZHDRY-NNIZZXHBSA-L; Disodium;4-[(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,6-disulfonate; C.I. 16150,; D91977
| Regulatory & Food Contact | COLOUR: Food Additives CI ACID RED 26 NMRS 38/TRS 309-JECFA 8/23 CI FOOD RED 5 |
|---|
Xylidine Ponceau 2R · CAS 3761-53-3 · C18H14N2Na2O7S2. Solubility: 1 to 10 mg/mL at 68 °F (NTP, 1992).
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: Xylidine Ponceau 2R