Dimethyl lithospermate B CAS 875313-64-7
| CAS No. | 875313-64-7 |
| Molecular Formula | C38H34O16 |
| Molecular Weight | 746.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Dimethyl lithospermate B (C38H34O16) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Dimethyl lithospermate B (CAS 875313-64-7), molecular formula C38H34O16 and molecular weight 746.67 g/mol, is a CATO reference standard with documented purity and traceability.
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 Dimethyl lithospermate B 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 | C38H34O16 |
| Molecular Weight | 746.67 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
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Recommended Standards
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- 1-Chloro-7-(trifluoromethyl)phthalazine (CAS 1352934-00-9)
- N1-(4-chlorobenzyl)-N1-isopropylethane-1,2-diamine (CAS 61694-91-5)
- tert-Butyl 5-oxo-1-(p-tolyl)-2,5-dihydro-1H-1,2,4-triazole-3-carboxylate (CAS 1000574-75-3)
- Semaglutide Impurity 191 (CAS CATO-C4X-2226191)
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