6-Aminonaphthalene-1,3-disulfonic acid CAS 118-33-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 118-33-2 |
| Molecular Formula | C10H9NO6S2 |
| Molecular Weight | 303.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Aminonaphthalene-1,3-disulfonic acid (CAS 118-33-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H9NO6S2. Molecular weight: 303.31 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H9NO6S2 |
| Molecular Weight | 303.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Aminonaphthalene Standards
- 5-Aminonaphthalene-1,3-disulfonic acid (CAS 13306-42-8)
- 1-Aminonaphthalene-2,6-disulfonic acid (CAS 16144-92-6)
- 3-Aminonaphthalene-2,7-disulfonic acid (CAS 92-28-4)
- 4-Aminonaphthalene-2,7-disulfonic acid (CAS 6251-07-6)
- 5-Aminonaphthalene-1-sulfonyl chloride (CAS 145061-31-0)
- 4-Aminonaphthalene-2,6-dicarboxylic acid (CAS 1638156-88-3)
- 4-aminonaphthalene-1,8-dicarboxylic anhydride;6-Aminobenz[de]isochromene-1,3-dione 6-Amino-benzo[de]isoquinoline-1,3-dione 6492-86-0 A8840 (CAS 6492-86-0)
- 8-Aminonaphthalene-1,3,6-trisulfonic acid (CAS 117-42-0)
Recommended Standards
- N-(4-Methoxybenzyl)-2-(6-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)acetamide (CAS 1170243-00-1)
- 4-(2,4-Dimethoxyphenyl)-3h,4h,5h,6h,7h-imidazo[4,5-c]pyridine-6-carboxylic acid (CAS 1214042-96-2)
- 2-Amino-1,5-naphthalenedisulfonic acid (CAS 117-62-4)
- N-(4-Methoxybenzyl)-1-(piperidin-4-yl)methanamine hydrochloride (CAS 1353955-71-1)
- 4-Bromo-7-hydroxyisoindolin-1-one (CAS 808127-81-3)
- 4-Bromo-2-nitro-6-(trimethoxymethyl)aniline (CAS 2055119-35-0)
- Ethyl 2-(2-((2-methylquinazolin-4-yl)oxy)acetamido)benzoate (CAS 1111149-23-5)
- 6-Amino-2-(pyridin-4-yl)pyrimidin-4-ol (CAS 61310-39-2)
- 2-((1-(2,4-Difluorophenyl)ethyl)amino)acetamide (CAS 926252-42-8)
- Semaglutide impurity 87 (CAS CATO-C4X-222687)
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