5-Amino-4-hydroxynaphthalene-1,6-disulfonic acid CAS 6271-89-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 6271-89-2 |
| Molecular Formula | C16H21N3O8S |
| Molecular Weight | 415.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Amino-4-hydroxynaphthalene-1,6-disulfonic acid (CAS 6271-89-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H21N3O8S. Molecular weight: 415.42 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H21N3O8S |
| Molecular Weight | 415.42 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2,2-dimethyl-N-[4-(2-phenylethynyl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]propanamide (CAS 2390149-56-9)
- Diphenyl (phenyl(phenylamino)methyl)phosphonate (CAS 3360-68-7)
- 1-Cyclohexylidene-2-((diphenoxyphosphoryl)amino)ethyl acetate (CAS 61416-74-8)
- Methyl piperidine-1-carbodithioate (CAS 698-17-9)
- 1-Ethylphenanthrene (CAS 30997-38-7)
- 13C Labeled acetone 7217-25-6 Acetone-1,3-13C2 Dimethyl-13C2 ketone Propanone-1,3-13C2 (CAS 7217-25-6)
- 1-(5-Chlorobenzo[d]thiazol-2-yl)piperidine-4-carboxylic acid (CAS 702669-57-6)
- 6-Amino-3-ethylbenzo[d]thiazol-2(3H)-one (CAS 60471-30-9)
- N,N-Diethylmaleamic acid (CAS 765230-15-7)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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