Rhein Methylate CAS 6155-37-9
| CAS No. | 6155-37-9 |
| Molecular Formula | C16H10O6 |
| Molecular Weight | 298.25 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 Rhein Methylate.
Rhein Methylate (CAS 6155-37-9), molecular formula C16H10O6 and molecular weight 298.25 g/mol, is a CATO reference standard with documented purity and traceability.
Rhein Methylate (C16H10O6) contains a flavonoid core, a hydroxyl group, an ether linkage. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Rhein Methylate 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 | C16H10O6 |
| Molecular Weight | 298.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Rhein Standards
Recommended Standards
- 1-(thiophen-2-ylmethyl)-1h-pyrazol-4-boronic acid pinacol ester 1-(thiophen-2-ylmethyl)-1h-pyrazole-4-boronic acid, pinacol ester 1-(thiophen-2-ylmethyl)pyrazole-4-boronic acid, pinacol ester 1-[(2-thienyl)methyl]-1h-pyrazole-4-boronic acid pinacol ester, 97% 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2-thienylmethyl)-1H-pyrazole 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(thiophen-2-ylmethyl)-1h-pyraz 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1-thiophen-2-ylmethyl-1h-pyrazole 864754-19-8 (CAS 864754-19-8)
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- DL-dopaquinone (CAS 4430-97-1)
- 6,6'-((3,3'-Di-tert-butyl-5,5'-dimethyl-[1,1'-biphenyl]-2,2'-diyl)bis(oxy))didibenzo[d,f][1,3,2]dioxaphosphepine (CAS 169254-16-4)
- 1-Butyl-6-cyclopropyl-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 886502-91-6)
- 2-(Cyclopentylamino)-N-methyl-N-phenylacetamide (CAS 1178424-32-2)
- 5-Ethyl-2-methoxybenzenesulfonyl chloride (CAS 88040-88-4)
- 2-Benzyl-4-methylpentanoic acid (CAS 85100-44-3)
- Peptide 437 (CAS CATO-CPTD788437)
Why CATO?
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