CAS 23647-14-5

SPADNS

Description:

SPADNS, or 3-Amino-5-mercapto-1,2,4-triazole-1-sulfonic acid, is a chemical compound commonly used as a reagent in analytical chemistry, particularly in colorimetric assays for the determination of certain metal ions, such as lead and cadmium. It is characterized by its ability to form stable colored complexes with these metals, which can be quantitatively measured. SPADNS is typically a crystalline solid that is soluble in water, making it suitable for various aqueous applications. The compound features a triazole ring, which contributes to its reactivity and complexation properties. Additionally, SPADNS is known for its sensitivity and specificity in detecting metal ions, making it valuable in environmental monitoring and quality control processes. Safety precautions should be taken when handling SPADNS, as it may pose health risks if ingested or inhaled. Overall, SPADNS is an important tool in analytical chemistry for trace metal analysis.

Formula: C₁₆H₁₂N₂O₁₁S₃·3Na

InChI: InChI=1S/C16H12N2O11S3.3Na/c19-12-7-11(31(24,25)26)5-8-6-13(32(27,28)29)15(16(20)14(8)12)18-17-9-1-3-10(4-2-9)30(21,22)23;;;/h1-7,19-20H,(H,21,22,23)(H,24,25,26)(H,27,28,29);;;

InChI key: InChIKey=UQSKFBMHJUNOEY-UHFFFAOYSA-N

SMILES: OC=1C2=C(C=C(S(=O)(=O)O)C1N=NC3=CC=C(S(=O)(=O)O)C=C3)C=C(S(=O)(=O)O)C=C2O.[Na]

Synonyms:

• 1,8-Dihydroxy-2-[4-sulfophenylazo]-naphthalene-3,6-disulfonic acid
• 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, trisodium salt
• 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[(p-sulfophenyl)azo]-, trisodium salt
• 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:3)
• 2-(4-Sulphophenylazo)chromotropic acid trisodium salt
• 3-(4-Sulfophenylazo)-4,5-dihydroxynaphthalene-2,7-disulfonic acid trisodium salt
• 4,5-Dihydroxy-3-(4-sulfophenylazo)-2,7-naphthalenedisulfonic acid, trisodium salt
• 5-Hydroxy-4-Oxo-3-[(4-Sulfonatophenyl)Hydrazono]-3,4-Dihydronaphthalene-2,7-Disulfonate
• Spadns
• Sulphanilic acid azochromotrope
• Trisodium 2-(p-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate
• Trisodium 4,5-Dihydroxy-3-(4-Sulphonatophenylazo)Naphthalene-2,7-Disulphonate
• p-Sulfophenylazochromotropic acid trisodium salt
• trisodium (3E)-5-hydroxy-4-oxo-3-[(4-sulfonatophenyl)hydrazono]-3,4-dihydronaphthalene-2,7-disulfonate
• trisodium (3Z)-5-hydroxy-4-oxo-3-[(4-sulfonatophenyl)hydrazono]-3,4-dihydronaphthalene-2,7-disulfonate

Trisodium 2-(4-Sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate

CAS: 23647-14-5

Formula: C₁₆H₉N₂Na₃O₁₁S₃

Purity: >95.0%(HPLC)

Color and Shape: Orange to Brown to Dark red powder to crystal

Molecular weight: 570.40

Ref: 3B-D0604

SPADNS

CAS: 23647-14-5

Sulfanilic acid azochromotrop is used as an indicator for complexometric determinations of zirconium and thorium. It is used as a reagent for drinking and wastewater analysis using Hach Method 8029, Fluoride, SPADNS Method. This Thermo Scientific Chemicals brand product was originally part of the Al

Formula: C₁₆H₉N₂Na₃O₁₁S₃

Color and Shape: Dark red to brown to dark brown, Crystals or powder or crystalline powder

Molecular weight: 570.40

Ref: 02-A16933

Trisodium 2-(p-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate

CAS: 23647-14-5

Formula: C₁₆H₉N₂Na₃O₁₁S₃

Purity: 95%

Color and Shape: Solid

Molecular weight: 570.4138

Ref: IN-DA002O14

Sulfanilic acid azochromotrop

CAS: 23647-14-5

Formula: C₁₆H₉N₂Na₃O₁₁S₃

Color and Shape: Red to brown powder

Molecular weight: 570.41

Ref: 7W-GT3529

Spadns

CAS: 23647-14-5

Spadns

Molecular weight: 570.4g/mol

Ref: 54-OR1024806

SPADNS (Sulfanilic Acid-azochromotrop) extrapure AR

CAS: 23647-14-5

Formula: C₁₆H₉N₂O₁₁S₃Na₃

Color and Shape: Red to brown, Crystalline powder, Clear

Molecular weight: 570.40

Ref: SR-38195

SPADNS extrapure AR, ACS

CAS: 23647-14-5

Formula: C₁₆H₉N₂O₁₁S₃Na₃

Color and Shape: Red to brown, Solid, Clear

Molecular weight: 570.40

Ref: SR-47886

p-Sulfophenylazochromotropic acid trisodium salt

CAS: 23647-14-5

p-Sulfophenylazochromotropic acid trisodium salt is a chemical that can be used as a building block for the synthesis of various organic compounds. It is an intermediate for the synthesis of other chemicals and can be used as a research chemical in laboratories. This compound has been shown to be useful in the production of pharmaceuticals, agrochemicals, and dyes. CAS No. 23647-14-5.

Formula: C₁₆H₉N₂Na₃O₁₁S₃

Purity: Min. 95 Area-%

Color and Shape: Yellow Powder

Molecular weight: 570.42 g/mol

Ref: 3D-FS41120