1,8- paragraph signthornoC>>uYA-3,6- paragraph signthorn>>CEa paragraph signthornAAENI 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt 4,5- paragraph signthornoC>>uYA-2,7- paragraph signthorn>>CEa paragraph signthornAAENI 4,5-DIHYDROXYNAPHTHALENE-2,7-DISULFONIC ACID DISODIUM SALT 5808-22-0 dipotassium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate disodium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate CAS 5808-22-0

Purity 97%+In StockPharmaceutical Standards
CAS No.5808-22-0
Molecular FormulaC10H16O8S2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,8- paragraph signthornoC>>uYA-3,6- paragraph signthorn>>CEa paragraph signthornAAENI 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt 4,5- paragraph signthornoC>>uYA-2,7- paragraph signthorn>>CEa paragraph signthornAAENI 4,5-DIHYDROXYNAPHTHALENE-2,7-DISULFONIC ACID DISODIUM SALT 5808-22-0 dipotassium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate disodium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate CAS 5808-22-0 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,8- paragraph signthornoC>>uYA-3,6- paragraph signthorn>>CEa paragraph signthornAAENI 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt 4,5- paragraph signthornoC>>uYA-2,7- paragraph signthorn>>CEa paragraph signthornAAENI 4,5-DIHYDROXYNAPHTHALENE-2,7-DISULFONIC ACID DISODIUM SALT 5808-22-0 dipotassium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate disodium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate.

1,8- paragraph signthornoC>>uYA-3,6- paragraph signthorn>>CEa paragraph signthornAAENI 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt 4,5- paragraph signthornoC>>uYA-2,7- paragraph signthorn>>CEa paragraph signthornAAENI 4,5-DIHYDROXYNAPHTHALENE-2,7-DISULFONIC ACID DISODIUM SALT 5808-22-0 dipotassium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate disodium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate (CAS 5808-22-0), molecular formula C10H16O8S2NaH2O and molecular weight 369.36 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C10H16O8S2NaH2O, 1,8- paragraph signthornoC>>uYA-3,6- paragraph signthorn>>CEa paragraph signthornAAENI 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt 4,5- paragraph signthornoC>>uYA-2,7- paragraph signthorn>>CEa paragraph signthornAAENI 4,5-DIHYDROXYNAPHTHALENE-2,7-DISULFONIC ACID DISODIUM SALT 5808-22-0 dipotassium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate disodium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate contains a carbohydrate-derived structure, a sulfone group; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 369.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC10H16O8S2 2*Na 2*H2O
Molecular Weight369.36 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1958
Sulfur Atoms2

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