Xantheno[2,1,9,8-klmna]xanthene CAS 191-28-6
| CAS No. | 191-28-6 |
| Molecular Formula | C20H32O17 |
| Molecular Weight | 544.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Xantheno[2,1,9,8-klmna]xanthene.
Xantheno[2,1,9,8-klmna]xanthene (CAS 191-28-6) is a high-purity analytical reference standard with the molecular formula C20H32O17 and a molecular weight of 544.46 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Xantheno[2,1,9,8-klmna]xanthene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 544.46 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Xantheno[2,1,9,8-klmna]xanthene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H32O17 |
| Molecular Weight | 544.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
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- 3-Amino-N-(2-bromo-4-methylphenyl)-4-(4-methoxyphenyl)-6-phenylthieno[2,3-b]pyridine-2-carboxamide (CAS 332053-69-7)
- (E)-[(5-{[(4-tert-butylphenyl)methyl]sulfanyl}-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methylidene]amino 2,4-dichlorobenzoate (CAS 318239-34-8)
- Erigeroster B (CAS 849777-61-3)
- 2,4-difluoro-5-methylpyrimidine (CAS 96548-89-9)
- 3,3-Dimethyl-2,3-dihydro-1H-pyrrolo[2,3-c]pyridine (CAS 1823891-04-8)
- tert-Butyl 4-(5-formyl-4-methyl-1,3-thiazol-2-yl)piperidine-1-carboxylate (CAS 850374-97-9)
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- 4-(Difluoromethyl)cyclohexanamine (CAS 1314939-44-0)
- 2,4-Dichloro-6-phenylthieno[2,3-d]pyrimidine (CAS 902765-47-3)
- (R)-1-(3-fluoro-2-methylphenyl)propan-1-amine (CAS 1213495-74-9)
- Acetyl Tripeptide-1 (CAS 350595-76-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com