CAS: 548-80-1 - 4,5-Dihydroxynaphthalene-3-(4-nitrophenylazo)-2,7-disulfonic acid disodium salt

Formula: C₁₆H₁₁N₃O₁₀S₂·2Na

InChI: InChI=1S/C16H11N3O10S2.2Na/c20-12-7-11(30(24,25)26)5-8-6-13(31(27,28)29)15(16(21)14(8)12)18-17-9-1-3-10(4-2-9)19(22)23;;/h1-7,20-21H,(H,24,25,26)(H,27,28,29);;

InChI key: InChIKey=GEBWHFRBVHTEBK-UHFFFAOYSA-N

SMILES: [Na].O=N(=O)C1=CC=C(N=NC=2C(O)=C3C(O)=CC(=CC3=CC2S(=O)(=O)O)S(=O)(=O)O)C=C1

Synonyms:

• 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-(p-nitrophenylazo)-, disodium salt
• 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[(4-nitrophenyl)azo]-, disodium salt
• 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)
• 4,5-Dihydroxy-3-(p-nitrophenylazo)-2,7-naphthalenedisulfonic acid, disodium salt
• 4,5-Dihydroxynaphthalene-3-(4-nitrophenylazo)-2,7-disulfonic acid disodium salt
• Acid Red 176
• Chromotrop 2 B
• Chromotrope Red 4B
• Cr-2B
• Disodium 4,5-Dihydroxy-3-(P-Nitrophenylazo)Naphthalene-2,7-Disulphonate
• Naphtocard Fast Red 3B
• P-Nitrobenzene-Azochromotropic Acid
• Pcr 2B
• Poly-chromotrope 2B
• disodium (3E)-5-hydroxy-3-[2-(4-nitrophenyl)hydrazinylidene]-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate
• p-Nitrobenzeneazochromotropic acid sodium salt
• Acid Red 176~C.I. 16575
• C.I. Acid Red 176, disodium salt (8CI)
• C.I. Acid Red 176, disodium salt
• C.I. Acid Red 176
• C.I. Acid Red 176 (VAN)
• C.I. 16575

Chromotrope 2B

CAS: 548-80-1

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. …

• Formula: C₁₆H₉N₃Na₂O₁₀S₂
• Color and Shape: Dark green to dark brown to black, Powder
• Molecular weight: 513.36

Chromotrope 2B, pure

CAS: 548-80-1

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₁₆H₉N₃Na₂O₁₀S₂
• Color and Shape: Powder, Dark green to greenish-brown to brown
• Molecular weight: 513.36

CHROMOTROPE 2B

CAS: 548-80-1

• Formula: C₁₆H₉N₃Na₂O₁₀S₂
• Purity: 97%
• Color and Shape: Solid
• Molecular weight: 513.3663

Chromotrope 2B

CAS: 548-80-1

• Formula: C₁₆H₉N₃Na₂O₁₀S₂
• Color and Shape: Brown to brown-red, brown-violet, green-brown or dark green crystals or powder
• Molecular weight: 513.37

Chromotrope 2B

CAS: 548-80-1

Chromotrope 2B is a water-soluble dye that is used for the detection of the presence …

• Formula: C₁₆H₉N₃O₁₀S₂·2Na
• Purity: Min. 95%
• Color and Shape: Powder
• Molecular weight: 513.37 g/mol

Chromotrope 2B

CAS: 548-80-1

Chromotrope 2B detects boric acid/borates and creates colored anions with Chromotrope 2R.

• Formula: C₁₆H₉N₃Na₂O₁₀S₂
• Purity: 99.49%
• Color and Shape: Dark Green To Dark Purple Crystalline Powder
• Molecular weight: 513.37