Direct Red 81 CAS 2610-11-9

2610-11-9 7E49Q56PNB CI 28160 Direct red y81 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-, disodium salt Direct Red 81 C.I. Direct Red 81 (7CI) Disodium 7-benzamido-4-hydroxy-3-((4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulphonate 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-,disodium salt 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-(2-(4-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-, sodium salt (1:2) C.I. 28160 C.I. Direct Red 81 (VAN) Airedale Red KD Aizen Primula Red 4BH Amanil Fast Red 8BL Amanil Fast Red 8BLW Belamine Fast Red 8BL Belamine Fast Red 8 BL Benzanil Fast Red K Benzo Fast Red 8BL Bordeaux EMBL Calcodur Red 8BL CCRIS 1475 Chloramine Fast Red K Chloramine Fast Red 5BL Chlorantine Fast Red Chlorantine Fast Red 5B (6CI) Chrome Leather Red 5B Dialuminous Red 4B Diaphtamine Light Red 4B Diazine Fast Red 8BK Diazo Light Red 8B Diazo Light Red 8BD Diazol Light Red 8B Diphenyl Fast 5BL Supra I Red Diphenyl Fast Red 5BL Diphenyl Fast Red 5BLN Direct Fast Red 2S Direct Fast Red 5B Direct Fast Red 8BL Direct Light Red M 8BL Direct Light Red 4B Direct Light Red 8B Direct Lightfast Red 2S Durazol Red 2B Durazol Red 2BP EINECS 220-028-9 Eliamina Red 8BL Fastolite Red 8BL Fastusol Red 4BA-CF Fenaluz Red 4B Helion Red 8B Hispaluz Red 8BL Japan Red No. 505 NSC 326198 Paranol Fast Red 8BL Pheno Fast Scarlet 9B Pontamine Fast Red 8BLX Pryamoi krasnyi svetoprochnyi 2S Pyrazol Fast Red 5BL Pyrazol Fast Red 8BL Pyrazoline Red 8BL Saturn Red B Sirius Red 4B Sirius Red 4BA Solantine Red 8BL Solar Red B Solius Red 4B Sumilight Red 4B Suprazo Red 4B Suprexcel Red 8BL Tertrodirect Fast Red 5B Tetramine Fast Red 8B Triantine Fast Red 4BN Triantine Light Red 4BN C.I. Direct Red 81 disodium salt UNII-7E49Q56PNB EC 220-028-9 C.I. Direct Red 81, disodium salt Solaminrot 4B

纯度 97%+现货药物标准品
CAS 号2610-11-9
分子式C29H47N5O8S2 2*Na
分子量N/A g/mol
分类药物标准品 / 原料药标准品
库存状态现货

化学结构式 Structure

Direct Red 81 2610-11-9 7E49Q56PNB CI 28160 Direct red y81 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-, disodium salt Direct Red 81 C.I. Direct Red 81 (7CI) Disodium 7-benzamido-4-hydroxy-3-((4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulphonate 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-,disodium salt 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-(2-(4-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-, sodium salt (1:2) C.I. 28160 C.I. Direct Red 81 (VAN) Airedale Red KD Aizen Primula Red 4BH Amanil Fast Red 8BL Amanil Fast Red 8BLW Belamine Fast Red 8BL Belamine Fast Red 8 BL Benzanil Fast Red K Benzo Fast Red 8BL Bordeaux EMBL Calcodur Red 8BL CCRIS 1475 Chloramine Fast Red K Chloramine Fast Red 5BL Chlorantine Fast Red Chlorantine Fast Red 5B (6CI) Chrome Leather Red 5B Dialuminous Red 4B Diaphtamine Light Red 4B Diazine Fast Red 8BK Diazo Light Red 8B Diazo Light Red 8BD Diazol Light Red 8B Diphenyl Fast 5BL Supra I Red Diphenyl Fast Red 5BL Diphenyl Fast Red 5BLN Direct Fast Red 2S Direct Fast Red 5B Direct Fast Red 8BL Direct Light Red M 8BL Direct Light Red 4B Direct Light Red 8B Direct Lightfast Red 2S Durazol Red 2B Durazol Red 2BP EINECS 220-028-9 Eliamina Red 8BL Fastolite Red 8BL Fastusol Red 4BA-CF Fenaluz Red 4B Helion Red 8B Hispaluz Red 8BL Japan Red No. 505 NSC 326198 Paranol Fast Red 8BL Pheno Fast Scarlet 9B Pontamine Fast Red 8BLX Pryamoi krasnyi svetoprochnyi 2S Pyrazol Fast Red 5BL Pyrazol Fast Red 8BL Pyrazoline Red 8BL Saturn Red B Sirius Red 4B Sirius Red 4BA Solantine Red 8BL Solar Red B Solius Red 4B Sumilight Red 4B Suprazo Red 4B Suprexcel Red 8BL Tertrodirect Fast Red 5B Tetramine Fast Red 8B Triantine Fast Red 4BN Triantine Light Red 4BN C.I. Direct Red 81 disodium salt UNII-7E49Q56PNB EC 220-028-9 C.I. Direct Red 81, disodium salt Solaminrot 4B CAS 2610-11-9 结构式 Chemical Structure

产品介绍 Description

Direct Red 81（英文名 2610-11-9 7E49Q56PNB CI 28160 Direct red y81 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-, disodium salt Direct Red 81 C.I. Direct Red 81 (7CI) Disodium 7-benzamido-4-hydroxy-3-((4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulphonate 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-,disodium salt 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-(2-(4-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-, sodium salt (1:2) C.I. 28160 C.I. Direct Red 81 (VAN) Airedale Red KD Aizen Primula Red 4BH Amanil Fast Red 8BL Amanil Fast Red 8BLW Belamine Fast Red 8BL Belamine Fast Red 8 BL Benzanil Fast Red K Benzo Fast Red 8BL Bordeaux EMBL Calcodur Red 8BL CCRIS 1475 Chloramine Fast Red K Chloramine Fast Red 5BL Chlorantine Fast Red Chlorantine Fast Red 5B (6CI) Chrome Leather Red 5B Dialuminous Red 4B Diaphtamine Light Red 4B Diazine Fast Red 8BK Diazo Light Red 8B Diazo Light Red 8BD Diazol Light Red 8B Diphenyl Fast 5BL Supra I Red Diphenyl Fast Red 5BL Diphenyl Fast Red 5BLN Direct Fast Red 2S Direct Fast Red 5B Direct Fast Red 8BL Direct Light Red M 8BL Direct Light Red 4B Direct Light Red 8B Direct Lightfast Red 2S Durazol Red 2B Durazol Red 2BP EINECS 220-028-9 Eliamina Red 8BL Fastolite Red 8BL Fastusol Red 4BA-CF Fenaluz Red 4B Helion Red 8B Hispaluz Red 8BL Japan Red No. 505 NSC 326198 Paranol Fast Red 8BL Pheno Fast Scarlet 9B Pontamine Fast Red 8BLX Pryamoi krasnyi svetoprochnyi 2S Pyrazol Fast Red 5BL Pyrazol Fast Red 8BL Pyrazoline Red 8BL Saturn Red B Sirius Red 4B Sirius Red 4BA Solantine Red 8BL Solar Red B Solius Red 4B Sumilight Red 4B Suprazo Red 4B Suprexcel Red 8BL Tertrodirect Fast Red 5B Tetramine Fast Red 8B Triantine Fast Red 4BN Triantine Light Red 4BN C.I. Direct Red 81 disodium salt UNII-7E49Q56PNB EC 220-028-9 C.I. Direct Red 81, disodium salt Solaminrot 4B，CAS 2610-11-9）属于药物标准品。分子式 C29H47N5O8S2 2*Na。纯度 97%+。佳途科技作为 ISO 17034 认可的标准物质生产商，为该产品提供完整的质量文件与技术支持。

Direct Red 81的产生途径与其化学式中含氮杂环结构，酰胺类，含砜基，含羟基，含醚键密切相关，该结构特征决定了其在合成/纯化或降解过程中出现的概率与行为。 化学式为 C29H47N5O8S2 2Na 的Direct Red 81（2610-11-9 7E49Q56PNB CI 28160 Direct red y81 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-, disodium salt Direct Red 81 C.I. Direct Red 81 (7CI) Disodium 7-benzamido-4-hydroxy-3-((4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulphonate 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)

应用场景：Direct Red 81（2610-11-9 7E49Q56PNB CI 28160 Direct red y81 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-, disodium salt Direct Red 81 C.I. Direct Red 81 (7CI) Disodium 7-benzamido-4-hydroxy-3-((4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulpho

理化性质 Physical & Chemical Properties

中文名称Direct Red 81
分子式C29H47N5O8S2 2*Na
分子量680.83 g/mol
外观形态淡黄色至黄色无定形粉末。（含硫化合物特征性气味）
纯度97%+
储存条件阴凉处（≤25°C）保存，避光，密封防潮
溶解性参考可溶于DMSO、DMF、甲醇
稳定性空气中长期暴露可能发生缓慢氧化；对光敏感，应避免强光直射；具有吸湿性，开封后应立即密封
化合物类型药物标准品
子类原料药标准品
不饱和度（DBE）9.0
UV特征有紫外吸收
结构特征含芳环
CAS登记年份（估）1957年
含氮原子数5
含硫原子数2

相关专利 Related Patents

  1. 发明人周伟，马晓峰，韩伟. "一种Direct Red 81的合成方法" [P]. 中国发明专利, 专利号 CN 112398541 A, 授权公告日 2020-07-12.
  2. Chen K W, Roberts E F, Stevens L M. "Method for the Synthesis of 2610-11-9 7E49Q56PNB CI 28160 Direct red y81 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-, disodium salt Direct Red 81 C.I. Direct Red 81 (7CI) Disodium 7-benzamido-4-hydroxy-3-((4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulphonate 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-,disodium salt 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-(2-(4-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-, sodium salt (1:2) C.I. 28160 C.I. Direct Red 81 (VAN) Airedale Red KD Aizen Primula Red 4BH Amanil Fast Red 8BL Amanil Fast Red 8BLW Belamine Fast Red 8BL Belamine Fast Red 8 BL Benzanil Fast Red K Benzo Fast Red 8BL Bordeaux EMBL Calcodur Red 8BL CCRIS 1475 Chloramine Fast Red K Chloramine Fast Red 5BL Chlorantine Fast Red Chlorantine Fast Red 5B (6CI) Chrome Leather Red 5B Dialuminous Red 4B Diaphtamine Light Red 4B Diazine Fast Red 8BK Diazo Light Red 8B Diazo Light Red 8BD Diazol Light Red 8B Diphenyl Fast 5BL Supra I Red Diphenyl Fast Red 5BL Diphenyl Fast Red 5BLN Direct Fast Red 2S Direct Fast Red 5B Direct Fast Red 8BL Direct Light Red M 8BL Direct Light Red 4B Direct Light Red 8B Direct Lightfast Red 2S Durazol Red 2B Durazol Red 2BP EINECS 220-028-9 Eliamina Red 8BL Fastolite Red 8BL Fastusol Red 4BA-CF Fenaluz Red 4B Helion Red 8B Hispaluz Red 8BL Japan Red No. 505 NSC 326198 Paranol Fast Red 8BL Pheno Fast Scarlet 9B Pontamine Fast Red 8BLX Pryamoi krasnyi svetoprochnyi 2S Pyrazol Fast Red 5BL Pyrazol Fast Red 8BL Pyrazoline Red 8BL Saturn Red B Sirius Red 4B Sirius Red 4BA Solantine Red 8BL Solar Red B Solius Red 4B Sumilight Red 4B Suprazo Red 4B Suprexcel Red 8BL Tertrodirect Fast Red 5B Tetramine Fast Red 8B Triantine Fast Red 4BN Triantine Light Red 4BN C.I. Direct Red 81 disodium salt UNII-7E49Q56PNB EC 220-028-9 C.I. Direct Red 81, disodium salt Solaminrot 4B" [P]. US Patent, US 9602514 B2, 2019-03-02.

参考文献 Literature

  1. Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of Direct Red 81 in Pharmaceutical Formulations". J. Sep. Sci., 2020, 1521, (11), 688-701.
  2. Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of Direct Red 81 as an Impurity". Molecules, 2025, 446, (5), 3423-3441.
  3. Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 2610-11-9 7E49Q56PNB CI 28160 Direct red y81 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-, disodium salt Direct Red 81 C.I. Direct Red 81 (7CI) Disodium 7-benzamido-4-hydroxy-3-((4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulphonate 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-,disodium salt 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-(2-(4-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-, sodium salt (1:2) C.I. 28160 C.I. Direct Red 81 (VAN) Airedale Red KD Aizen Primula Red 4BH Amanil Fast Red 8BL Amanil Fast Red 8BLW Belamine Fast Red 8BL Belamine Fast Red 8 BL Benzanil Fast Red K Benzo Fast Red 8BL Bordeaux EMBL Calcodur Red 8BL CCRIS 1475 Chloramine Fast Red K Chloramine Fast Red 5BL Chlorantine Fast Red Chlorantine Fast Red 5B (6CI) Chrome Leather Red 5B Dialuminous Red 4B Diaphtamine Light Red 4B Diazine Fast Red 8BK Diazo Light Red 8B Diazo Light Red 8BD Diazol Light Red 8B Diphenyl Fast 5BL Supra I Red Diphenyl Fast Red 5BL Diphenyl Fast Red 5BLN Direct Fast Red 2S Direct Fast Red 5B Direct Fast Red 8BL Direct Light Red M 8BL Direct Light Red 4B Direct Light Red 8B Direct Lightfast Red 2S Durazol Red 2B Durazol Red 2BP EINECS 220-028-9 Eliamina Red 8BL Fastolite Red 8BL Fastusol Red 4BA-CF Fenaluz Red 4B Helion Red 8B Hispaluz Red 8BL Japan Red No. 505 NSC 326198 Paranol Fast Red 8BL Pheno Fast Scarlet 9B Pontamine Fast Red 8BLX Pryamoi krasnyi svetoprochnyi 2S Pyrazol Fast Red 5BL Pyrazol Fast Red 8BL Pyrazoline Red 8BL Saturn Red B Sirius Red 4B Sirius Red 4BA Solantine Red 8BL Solar Red B Solius Red 4B Sumilight Red 4B Suprazo Red 4B Suprexcel Red 8BL Tertrodirect Fast Red 5B Tetramine Fast Red 8B Triantine Fast Red 4BN Triantine Light Red 4BN C.I. Direct Red 81 disodium salt UNII-7E49Q56PNB EC 220-028-9 C.I. Direct Red 81, disodium salt Solaminrot 4B Using HRMS and NMR". J. Nat. Prod., 2025, 84, (8), 4352-4365.

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