3,3'-Dihydroxy-1H,1'H-[2,2'-biindole]-5,5'-disulfonic acid CAS 28286-71-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 28286-71-7 |
| Molecular Formula | C16H12N2O8S2 |
| Molecular Weight | 424.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,3'-Dihydroxy-1H,1'H-[2,2'-biindole]-5,5'-disulfonic acid (CAS 28286-71-7) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C16H12N2O8S2. Molecular weight: 424.41 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C16H12N2O8S2 |
| Molecular Weight | 424.41 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Dihydroxy Standards
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- 5,7-Dihydroxy-2-(4-methoxy-3,5-bis(3-methylbut-2-en-1-yl)phenyl)chroman-4-one (CAS 887594-71-0)
- 1,5-Dihydroxy-4,8-bis(phenylamino)anthracene-9,10-dione (CAS 25632-28-4)
- 1,8-Dihydroxy-4,5-bis(phenylamino)anthracene-9,10-dione (CAS 71873-61-5)
- (3α,5 β,7α)-3,7-Dihydroxy-12-oxocholan-24-oic Acid Methyl Ester (CAS 10538-64-4)
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Recommended Standards
- (2R,3S,4R,5R)-2-(Hydroxymethyl)-5-(6-(methylamino)-2-(4-(pyridin-2-yl)-1H-pyrazol-1-yl)-9H-purin-9-yl)tetrahydrofuran-3,4-diol (CAS 765299-61-4)
- 3-{[(4-chlorophenyl)methyl]sulfanyl}-5-({[(4-chlorophenyl)methyl]sulfanyl}methyl)-4-ethyl-4H-1,2,4-triazole (CAS 344268-69-5)
- Methyl 5-{[3-(methoxycarbonyl)-4-nitrophenyl]disulfanyl}-2-nitrobenzoate (CAS 115215-73-1)
- 1-azido-3-methylbenzene (CAS 4113-72-8)
- (S)-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)pyrrolidine hydrochloride (CAS 2114341-27-2)
- Pentadecanoic-15,15,15-d3 Acid (CAS 352431-40-4)
- 4-(Trifluoromethyl)-1H-pyrazole-3-carboxylic acid (CAS 716362-12-8)
- 4-(piperidin-4-yl)-4H-1,2,4-triazol-3-amine dihydrochloride (CAS 1803571-60-9)
- 2-(2-(Pyridin-4-ylmethoxy)phenyl)acetic acid (CAS 1521945-79-8)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
Why CATO?
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