5-Br-PADAP - ≥98% , CAS No.14337-53-2

CAS: 14337-53-2 Cat. No.: B113784 Molecular Weight: 349.23 Beilstein Registry Number: 430511 EC Number: 238-286-6

GRADE & PURITY ≥98%

Synonyms

Bromo-PADAP | 2-((5-Bromopyridin-2-yl)diazenyl)-5-(diethylamino)phenol | (E)-2-((5-bromopyridin-2-yl)diazenyl)-5-(diethylamino)phenol | 2-[(1E)-2-(5-bromopyridin-2-yl)diazen-1-yl]-5-(diethylamino)phenol | 2-(5-Bromo-2-pyridylazo)-5-(diethylamino)phenol, 9

Storage

Store at 2-8°C

Shipped In

Wet ice

Overview

2-(5-Bromo-2-pyridylazo)-5-(diethylamino)phenol is a reagent used in the spectrophotometric determination of uranium(VI).
A reagent used in spectrophotometric determination of uranium.

Specifications

Synonyms

Bromo-PADAP | 2-((5-Bromopyridin-2-yl)diazenyl)-5-(diethylamino)phenol | (E)-2-((5-bromopyridin-2-yl)diazenyl)-5-(diethylamino)phenol | 2-[(1E)-2-(5-bromopyridin-2-yl)diazen-1-yl]-5-(diethylamino)phenol | 2-(5-Bromo-2-pyridylazo)-5-(diethylamino)phenol, 9

Specifications & Purity

≥98%

Storage

Store at 2-8°C

Shipped In

Wet ice

This product requires cold chain shipping. Ground and other economy services are not available.

Purity

≥98%

Names and Identifiers

• Canonical Smiles: CCN(CC)C1=CC(=C(C=C1)N=NC2=NC=C(C=C2)Br)O
• IUPAC Name: 2-[(5-bromopyridin-2-yl)diazenyl]-5-(diethylamino)phenol
• InChIKey: HNVCXDAVEHOIBP-UHFFFAOYSA-N
• INCHI: 1S/C15H17BrN4O/c1-3-20(4-2)12-6-7-13(14(21)9-12)18-19-15-8-5-11(16)10-17-15/h5-10,21H,3-4H2,1-2H3
• Isomeric SMILES: CCN(CC)C1=CC(=C(C=C1)N=NC2=NC=C(C=C2)Br)O
• WGK Germany: 3
• Molecular Weight: 349.23
• Beilstein: 430511
• Reaxy-Rn: 4705603
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=4705603&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organic nitrogen compounds
    • Class Organonitrogen compounds
      • Subclass Amines
        • Level5 Tertiary amines
          • Level6 Tertiary alkylarylamines
            • Level7 Dialkylarylamines

• Kingdom: Organic compounds
• Superclass: Organic nitrogen compounds
• Class: Organonitrogen compounds
• Subclass: Amines
• Intermediate Tree Nodes: Tertiary amines - Tertiary alkylarylamines
• Direct Parent: Dialkylarylamines
• Alternative Parents: m-Aminophenols Aniline and substituted anilines 1-hydroxy-4-unsubstituted benzenoids 1-hydroxy-2-unsubstituted benzenoids Pyridines and derivatives Aryl bromides Heteroaromatic compounds Azo compounds Propargyl-type 1,3-dipolar organic compounds Azacyclic compounds Organopnictogen compounds Organooxygen compounds Organobromides Hydrocarbon derivatives
• Molecular Framework: Aromatic heteromonocyclic compounds
• Substituents: M-aminophenol - Aminophenol - Aniline or substituted anilines - Dialkylarylamine - 1-hydroxy-4-unsubstituted benzenoid - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Aryl bromide - Aryl halide - Monocyclic benzene moiety - Pyridine - Benzenoid - Heteroaromatic compound - Azo compound - Azacycle - Organoheterocyclic compound - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Organohalogen compound - Organic oxygen compound - Organobromide - Organooxygen compound - Organopnictogen compound - Hydrocarbon derivative - Aromatic heteromonocyclic compound
• Description: This compound belongs to the class of organic compounds known as dialkylarylamines. These are aliphatic aromatic amines in which the amino group is linked to two aliphatic chains and one aromatic group.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Soluble in water (partly).
• Melt Point(°C): 157-158°C
• Molecular Weight: 349.230 g/mol
• XLogP3: 4.200
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 5
• Rotatable Bond Count: 5
• Exact Mass: 348.059 Da
• Monoisotopic Mass: 348.059 Da
• Topological Polar Surface Area: 61.100 Ų
• Heavy Atom Count: 21
• Formal Charge: 0
• Complexity: 338.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

References

1. Wen He, Yongbo Xie, Qiang Yin, Zixuan Zhao, Lang Shi, Hongqing Wang.  (2021)  A new “on–off–on” g-C3N4 nanosheets fluorescent sensor for 5-Br-PADAP and Co2+ under acidic conditions.  NEW JOURNAL OF CHEMISTRY,  46  (4): (1960-1971).  [PMID:] [10.1039/D1NJ03492H]

2. Zhu Yun, Hu Xueping, Pan Dawei, Han Haitao, Lin Mingyue, Lu Yan, Wang Chenchen, Zhu Rilong.  (2018)  Speciation determination of iron and its spatial and seasonal distribution in coastal river.  Scientific Reports,  8  (1): (1-9).  [PMID:29416105] [10.1038/s41598-018-20991-0]

3. Yun Zhu, Dawei Pan, Xueping Hu, Haitao Han, Mingyue Lin, Chenchen Wang.  (2016)  An electrochemical sensor based on reduced graphene oxide/gold nanoparticles modified electrode for determination of iron in coastal waters.  SENSORS AND ACTUATORS B-CHEMICAL,      [PMID:] [10.1016/j.snb.2016.11.108]

4. Yan Zhou, Jianping Zhang, Xuegang Luo, Xiaoyan Lin.  (2014)  Adsorption of Hg(II) in aqueous solutions using mercapto-functionalized alkali lignin.  JOURNAL OF APPLIED POLYMER SCIENCE,  131  (18):   [PMID:] [10.1002/app.40749]

5. Ran Ke, Kang Fenghua, Zhou Wentao, Zhang Ziyuan, Li Yintao, He Zhiyu.  (2025)  RAFT copolymerization of amphiphilic poly(ethyl acrylate)-b-acrylic acid as a wetting and dispersing agent for aqueous strippable decontamination coatings.  Journal of Coatings Technology and Research,      [PMID:] [10.1007/s11998-025-01090-y]

6. Jing Sun, Hong Shu, Xiaoyan Wu, Tingting Liu, Guangyue Li, Zhao Cui, Ting Li, Xiaowei Zhou, Zhongran Dai, Qian Li.  (2026)  Quorum sensing-driven biofilm cathode of Shewanella oneidensis for enhanced uranium adsorption: Elucidating the role of exogenous AHLs and validation in actual uranium-contaminated groundwater.  JOURNAL OF HAZARDOUS MATERIALS,      [PMID:41702164] [10.1016/j.jhazmat.2026.141485]