Arsenazo I - AR , CAS No.66019-20-3

CAS: 66019-20-3 Cat. No.: A110709 Molecular Weight: 614.28 EC Number: 266-069-6
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GRADE & PURITY AR ? Analytical Reagent grade — high-purity chemicals meeting strict assay limits for lab analysis. Use when accuracy matters and trace impurities could skew results.
Synonyms
ARSENAZO I 3-HYDRATE | Arsenazo I hydrate | sodium (E)-3-((2-(hydrogenarsonato)phenyl)diazenyl)-4,5-dihydroxynaphthalene-2,7-disulfonate | AKOS015902816 | D89681 | trisodium;4,5-dihydroxy-3-[[2-[hydroxy(oxido)arsoryl]phenyl]diazenyl]naphthalene-2,7-disulf
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1g
A110709-1g
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Why this grade

AR AR for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
ARSENAZO I 3-HYDRATE | Arsenazo I hydrate | sodium (E)-3-((2-(hydrogenarsonato)phenyl)diazenyl)-4, 5-dihydroxynaphthalene-2, 7-disulfonate | AKOS015902816 | D89681 | trisodium;4, 5-dihydroxy-3-[[2-[hydroxy(oxido)arsoryl]phenyl]diazenyl]naphthalene-2, 7-disulf
Specifications & Purity
AR
Shipped In
Normal
Grade
AR
Names and Identifiers
Pubchem Sid488192196
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488192196
Canonical SmilesC1=CC=C(C(=C1)N=NC2=C(C3=C(C=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])O)O)[As](=O)(O)[O-].[Na+].[Na+].[Na+]
IUPAC Nametrisodium;4,5-dihydroxy-3-[[2-[hydroxy(oxido)arsoryl]phenyl]diazenyl]naphthalene-2,7-disulfonate
InChIKeyNBVFGAJJMPGDDH-UHFFFAOYSA-K
INCHI1S/C16H13AsN2O11S2.3Na/c20-12-7-9(31(25,26)27)5-8-6-13(32(28,29)30)15(16(21)14(8)12)19-18-11-4-2-1-3-10(11)17(22,23)24;;;/h1-7,20-21H,(H2,22,23,24)(H,25,26,27)(H,28,29,30);;;/q;3*+1/p-3
Isomeric SMILES C1=CC=C(C(=C1)N=NC2=C(C3=C(C=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])O)O)[As](=O)(O)[O-].[Na+].[Na+].[Na+]
UN Number 3280
Molecular Weight 614.28
Reaxy-Rn 5714331
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=5714331&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

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✅ Certificate of Analysis (COA)

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📊 Datasheet

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassNaphthalenes
SubclassNaphthalene sulfonic acids and derivatives
Intermediate Tree Nodes Naphthalene sulfonates
Direct Parent2-naphthalene sulfonates
Alternative Parents 2-naphthalene sulfonic acids and derivatives  1-sulfo,2-unsubstituted aromatic compounds  Phenoxides  Pentaorganoarsanes  Sulfonyls  Organosulfonic acids  Azo compounds  Sulfur-containing organoarsenic compounds  Propargyl-type 1,3-dipolar organic compounds  Oxygen-containing organoarsenic compounds  Organic metalloid salts  Organooxygen compounds  Hydrocarbon derivatives  Organic oxides  Organic sodium salts  Organic cations  
Molecular FrameworkAromatic homopolycyclic compounds
Substituents 2-naphthalene sulfonic acid or derivatives - 2-naphthalene sulfonate - Arylsulfonic acid or derivatives - 1-sulfo,2-unsubstituted aromatic compound - Phenoxide - Monocyclic benzene moiety - Pentaorganoarsane - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Organosulfonic acid - Sulfonyl - Azo compound - Oxygen-containing organoarsenic compound - Sulfur-containing organoarsenic compound - Organic alkali metal salt - Organic metalloid salt - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Organic oxygen compound - Hydrocarbon derivative - Organic nitrogen compound - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Organic oxide - Organic sodium salt - Organic salt - Organic metalloid moeity - Organoarsenic compound - Organic cation - Aromatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as 2-naphthalene sulfonates. These are organic aromatic compounds that contain a naphthalene moiety that carries a sulfonic acid group at the 2-position. Naphthalene is a bicyclic compound that is made up of two fused benzene ring.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

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Lot NumberCertificate TypeDateItem
B2325279Certificate of AnalysisMar 03, 2023 A110709
Chemical and Physical Properties
SensitivityMoisture sensitive.
Melt Point(°C)>300°C
Molecular Weight614.300 g/mol
XLogP3
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count13
Rotatable Bond Count3
Exact Mass613.864 Da
Monoisotopic Mass613.864 Da
Topological Polar Surface Area257.000 Ų
Heavy Atom Count35
Formal Charge0
Complexity942.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count4
Solution Calculators
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