137-50-8 1,3-Benzenedisulfonic acid, 4,6-diamino- 4,6-Diaminobenzene-1,3-disulphonic acid EINECS 205-298-8 CAS 137-50-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 137-50-8 |
| Molecular Formula | C6H8N2O6S2 |
| Molecular Weight | 268.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
137-50-8 1,3-Benzenedisulfonic acid, 4,6-diamino- 4,6-Diaminobenzene-1,3-disulphonic acid EINECS 205-298-8 (CAS 137-50-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H8N2O6S2. Molecular weight: 268.27 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H8N2O6S2 |
| Molecular Weight | 268.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Benzenedisulfonic Standards
- 1,3-Benzenedisulfonic acid, diethyl ester (CAS 34577-48-5)
- Benzenedisulfonic acid (CAS 30496-93-6)
- 1,2-Benzenedisulfonic Imide (CAS 4482-01-3)
- 1,3-Benzenedisulfonic acid, 4-[2-[5-(aminocarbonyl)-1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl]diazenyl]-6-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-, sodium salt (CAS 70865-29-1)
- 1,4-Benzenedisulfonic acid, 2-amino-, sodium salt (CAS 76684-33-8)
Recommended Standards
- 4-(3-Aminophenyl)-1-methyl-1h-pyrazolo[3,4-b]pyridine-3-carboxylic acid (CAS 1354706-25-4)
- 3-Benzyloxy-6-Methyl-Pyrrolo[3,4-B]Pyridine-5,7-Dione (CAS 1373029-12-9)
- 4-(4-aminophenyl)-1-methyl-1{H}-pyrazolo[3,4-{b}]pyridine-3-carboxylic acid (CAS 1354704-66-7)
- imidazo[1,5-a]pyridin-5-ylboronic acid (CAS 1309980-27-5)
- (2E)-3-(2-{acetyl[3-(trifluoromethyl)phenyl]amino}-1,3-thiazol-4-yl)acrylic acid (CAS 790272-39-8)
- 2-Iodo-5-methylpyrazine (CAS 914452-70-3)
- 8-(Β-D-Glucopyranosyloxy)-7-Hydroxy-2H-1-Benzopyran-2-One (CAS 20853-56-9)
- 6-Amino-1-(3,4-dimethoxyphenethyl)pyrimidine-2,4(1H,3H)-dione (CAS 446266-76-8)
- Methyl 2-Chloro-4-ethynylbenzoate (CAS 1224640-19-0)
- Autocamtide-2-Related Inhibitory Peptide TFA (CAS 167114-91-2（free base）)
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