Hydrocortisone 21 Phosphate Dimer CAS 20513-23-9
| CAS No. | 20513-23-9 |
| Molecular Formula | C42H59O12P |
| Molecular Weight | 786.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Hydrocortisone 21 Phosphate Dimer (CAS 20513-23-9), a certified reference material (molecular formula C42H59O12P, MW 786.88 g/mol) for analytical method development and quality control.
Structurally, Hydrocortisone 21 Phosphate Dimer (C42H59O12P) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 13.5, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 786.88 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Hydrocortisone 21 Phosphate Dimer meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C42H59O12P |
| Molecular Weight | 786.88 g/mol |
| Purity | 97%+ |
| 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) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Hydrocortisone Standards
- Hydrocortisone impurity 42 (CAS CATO-C4X-140142)
- Hydrocortisone Impurity 44 (CAS 106597-71-1)
- Hydrocortisone EP Impurity N (CAS CATO-C4X-140114)
- Hydrocortisone Impurity 74 (CAS CATO-C4X-140174)
- Hydrocortisone Impurity 54 (CAS CATO-C4X-140154)
- Hydrocortisone Impurity 66 (CAS CATO-C4X-140166)
- Hydrocortisone Impurity 52 (CAS CATO-C4X-140152)
- Hydrocortisone 21-Octanoate (CAS 6678-14-4)
Recommended Standards
- (5-Methyl-2-oxo-1,3-dioxol-4-yl)methyl 2-ethyl-5-(2-hydroxypropan-2-yl)-3-[[4-[2-(2-trityltetrazol-5-yl)phenyl]phenyl]methyl]imidazole-4-carboxylate (CAS 144691-13-4)
- 3-[(2-(Benzyloxycarbonyl)aminoacetyl)amino]-2,4,6-triiodoisophthaloyl Dichloride (CAS 1797114-29-4)
- Vonoprazan Impurity 268 (CAS CATO-C4X-1020268)
- Tetrakis(pentafluorophenyl)stannane (CAS 1065-49-2)
- Bicyclo[3.2.2]Nonane-1-carboxylic acid (CAS 19388-40-0)
- 1-Ethenyl-4-oxo-cyclohexanecarboxylic Acid (CAS 1082207-50-8)
- 2-Cyclobutyl-[1,2,4]triazolo[1,5-a]pyridine-6-carboxylic acid (CAS 1506419-04-0)
- Poly(oxy-1,2-ethanediyl), .alpha.-[2-[3,6-bis(diethylamino)xanthylium-9-yl]benzoyl]-.omega.-hydroxy-, bis[2-[2-[4,5-dihydro-3-methyl-5-(oxo-.kappa.O)-1-phenyl-1H-pyrazol-4-yl]diazenyl-.kappa.N1]benzoato(2-)-.kappa.O]chromate(1-) (CAS 103651-08-7)
- Isomalt (CAS 64519-82-0)
- 2-(3-Methoxyphenyl)-7,8-dimethylquinoline-4-carbonyl chloride (CAS 1160261-30-2)
- 3-Benzyl-5-(1-methyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridin-3-yl)-1,2,4-oxadiazole hydrochloride (CAS 1306738-84-0)
- 4-(Chlorodifluoromethyl)benzonitrile (CAS 51012-21-6)
- Crizotinib Impurity 52 (CAS CATO-C4X-102552)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com