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· · COA & SDS available for every product · Same-day shipping on in-stock items Beryllon II - indicator , CAS No.51550-25-5
GRADE & PURITY Indicator ? Indicator grade — characterized dye giving a defined color change at a known transition. Use to signal pH or titration endpoints visually. Synonyms
AKOS015903225 | FT-0622880 | Sodium4,5-dihydroxy-3-((8-hydroxy-3,6-disulfonatonaphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate | sodium (E)-4,5-dihydroxy-3-((8-hydroxy-3,6-disulfonatonaphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate | EINECS 257-27
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Why this grade indicator Indicator for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping Room temperature Ships 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.
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Literature proof Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Specifications Synonyms
AKOS015903225 | FT-0622880 | Sodium4, 5-dihydroxy-3-((8-hydroxy-3, 6-disulfonatonaphthalen-1-yl)diazenyl)naphthalene-2, 7-disulfonate | sodium (E)-4, 5-dihydroxy-3-((8-hydroxy-3, 6-disulfonatonaphthalen-1-yl)diazenyl)naphthalene-2, 7-disulfonate | EINECS 257-27
Specifications & Purity
indicator
Names and Identifiers Pubchem Sid 488187332 Pubchem Sid Url https://pubchem.ncbi.nlm.nih.gov/substance/488187332 Canonical Smiles C1=C2C=C(C=C(C2=C(C=C1S(=O)(=O)[O-])N=NC3=C(C4=C(C=C(C=C4C=C3S(=O)(=O)[O-])S(=O)(=O)[O-])O)O)O)S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+] IUPAC Name tetrasodium;4,5-dihydroxy-3-[(8-hydroxy-3,6-disulfonatonaphthalen-1-yl)diazenyl]naphthalene-2,7-disulfonate InChIKey BYOASQSUNKYWNG-UHFFFAOYSA-J INCHI 1S/C20H14N2O15S4.4Na/c23-14-6-11(39(29,30)31)2-8-1-10(38(26,27)28)5-13(17(8)14)21-22-19-16(41(35,36)37)4-9-3-12(40(32,33)34)7-15(24)18(9)20(19)25;;;;/h1-7,23-25H,(H,26,27,28)(H,29,30,31)(H,32,33,34)(H,35,36,37);;;;/q;4*+1/p-4 Isomeric SMILES C1=C2C=C(C=C(C2=C(C=C1S(=O)(=O)[O-])N=NC3=C(C4=C(C=C(C=C4C=C3S(=O)(=O)[O-])S(=O)(=O)[O-])O)O)O)S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+] PubChem CID 103899 Molecular Weight 738.52
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.
Look up COA → 📊 Datasheet Quick-reference summary of product specifications and applications.
View datasheet → 🔬 Specification Sheet Full quality attributes and acceptance criteria for this grade.
View spec sheet →
Advanced Data Taxonomic Classification Kingdom Organic compounds Superclass Benzenoids Class Naphthalenes Subclass Naphthalene sulfonic acids and derivatives Intermediate Tree Nodes Naphthalene sulfonates Direct Parent 2-naphthalene sulfonates Alternative Parents 2-naphthalene sulfonic acids and derivatives 1-sulfo,2-unsubstituted aromatic compounds Phenoxides Sulfonyls Organosulfonic acids Azo compounds Propargyl-type 1,3-dipolar organic compounds Organooxygen compounds Organic sodium salts Organic oxides Hydrocarbon derivatives Organic cations Molecular Framework Aromatic homopolycyclic compounds Substituents 2-naphthalene sulfonic acid or derivatives - 2-naphthalene sulfonate - Arylsulfonic acid or derivatives - 1-sulfo,2-unsubstituted aromatic compound - Phenoxide - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Organosulfonic acid - Sulfonyl - Azo compound - Organic alkali metal salt - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Organic sodium salt - Organic nitrogen compound - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Organic salt - Organic cation - Aromatic homopolycyclic compound Description This 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 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.
3D Structure Certificates（CoA,COO,BSE/TSE and Analysis Chart) Chemical and Physical Properties Molecular Weight 738.500 g/mol XLogP3 Hydrogen Bond Donor Count 3 Hydrogen Bond Acceptor Count 17 Rotatable Bond Count 2 Exact Mass 737.855 Da Monoisotopic Mass 737.855 Da Topological Polar Surface Area 348.000 Ų Heavy Atom Count 45 Formal Charge 0 Complexity 1390.000 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 5
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