Sulfo orange - Aqueous solution (aniline yellow) 0.1% (w/v) , CAS No.547-57-9

CAS: 547-57-9 Cat. No.: S196523 Molecular Weight: 316.27 EC Number: 208-924-8 PubChem CID: 2728027
AVAILABLE TO ORDER
GRADE & PURITY Aqueous solution (aniline yellow) 0.1% (w/v)
Synonyms
Tropaeolin O|547-57-9|ACID ORANGE 6|Resorcinol yellow|Chrysoine|TropaeolinO|Chrysoine S|C.I. Acid Orange 6|Tropaeoline|Resorcin yellow|Chrysoine Extra|Tropaeoline O|Chrysonine S|Tropaeolin R|Chrysoine N|Chrysonis S|Gold Yellow|Resorcine Yellow|Tropaelin-O
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
500ml
S196523-500ml
1

$84.90

$124.90
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Why this grade

Aqueous solution (aniline yellow) 0.1% (w/v) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

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

📚

Literature proof

Cited in 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Tropaeolin O | 547-57-9 | ACID ORANGE 6 | Resorcinol yellow | Chrysoine | TropaeolinO | Chrysoine S | C.I. Acid Orange 6 | Tropaeoline | Resorcin yellow | Chrysoine Extra | Tropaeoline O | Chrysonine S | Tropaeolin R | Chrysoine N | Chrysonis S | Gold Yellow | Resorcine Yellow | Tropaelin-O
Specifications & Purity
Aqueous solution (aniline yellow) 0.1% (w/v)
Storage
Room temperature
Shipped In
Normal
Names and Identifiers
Canonical SmilesC1=CC(=CC=C1N=NC2=C(C=C(C=C2)O)O)S(=O)(=O)[O-].[Na+]
IUPAC Namesodium;4-[(2,4-dihydroxyphenyl)diazenyl]benzenesulfonate
InChIKeyCOEZWFYORILMOM-UHFFFAOYSA-M
INCHI1S/C12H10N2O5S.Na/c15-9-3-6-11(12(16)7-9)14-13-8-1-4-10(5-2-8)20(17,18)19;/h1-7,15-16H,(H,17,18,19);/q;+1/p-1
Isomeric SMILES C1=CC(=CC=C1N=NC2=C(C=C(C=C2)O)O)S(=O)(=O)[O-].[Na+]
PubChem CID 2728027
Molecular Weight 316.27

Documentation

📋 Safety Data Sheet (SDS)

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

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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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
SuperclassOrganoheterocyclic compounds
ClassAzobenzenes
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentAzobenzenes
Alternative Parents Benzenesulfonic acids and derivatives  Benzenesulfonyl compounds  1-sulfo,2-unsubstituted aromatic compounds  Phenoxides  1-hydroxy-4-unsubstituted benzenoids  1-hydroxy-2-unsubstituted benzenoids  Sulfonyls  Organosulfonic acids  Azo compounds  Propargyl-type 1,3-dipolar organic compounds  Organopnictogen compounds  Organooxygen compounds  Organic sodium salts  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Azobenzene - Benzenesulfonate - Benzenesulfonyl group - 1-sulfo,2-unsubstituted aromatic compound - Arylsulfonic acid or derivatives - 1-hydroxy-4-unsubstituted benzenoid - 1-hydroxy-2-unsubstituted benzenoid - Phenoxide - Phenol - Benzenoid - Monocyclic benzene moiety - Sulfonyl - Organosulfonic acid - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Azo compound - Organic alkali metal salt - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organic sodium salt - Organic salt - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as azobenzenes. These are organonitrogen aromatic compounds that contain a central azo group, where each nitrogen atom is conjugated to a 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:
Chemical and Physical Properties
Molecular Weight316.270 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count7
Rotatable Bond Count3
Exact Mass316.013 Da
Monoisotopic Mass316.013 Da
Topological Polar Surface Area131.000 Ų
Heavy Atom Count21
Formal Charge0
Complexity445.000
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 Count2
Citations of This Product
References
1. Yawei Qi, Lifang Zhu, Xin Shen, Arcadio Sotto, Congjie Gao, Jiangnan Shen.  (2019)  Polythyleneimine-modified original positive charged nanofiltration membrane: Removal of heavy metal ions and dyes.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2019.03.083]
2. Xinmiao Xu, Yi Zhang, Yong Chen, Yu Liu.  (2024)  Vapor-Driven Crosslinked Hydroxypropyl-β-Cyclodextrin Electrospun Nanofibrous Membranes for Ultrafast Dye Removal.  Chemistry-Switzerland,  (4): (506-516).  [PMID:] [10.3390/chemistry6040029]
Solution Calculators
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