(20b)-3b-Hydroxyurs-12,18-dien-28-oic acid CAS 6756-14-5
| CAS No. | 6756-14-5 |
| Molecular Formula | C30H46O3 |
| Molecular Weight | 454.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(20b)-3b-Hydroxyurs-12,18-dien-28-oic acid (C30H46O3) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
(20b)-3b-Hydroxyurs-12,18-dien-28-oic acid (CAS 6756-14-5), molecular formula C30H46O3 and molecular weight 454.68 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 (20b)-3b-Hydroxyurs-12,18-dien-28-oic acid 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 | C30H46O3 |
| Molecular Weight | 454.68 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Recommended Standards
- tert-Butyl (2S,4R)-2-(aminomethyl)-4-((tert-butyldiphenylsilyl)oxy)pyrrolidine-1-carboxylate (CAS 1432589-58-6)
- 3,5-Di-tert-butyl-4-hydroxybenzyl ether (CAS 6922-60-7)
- Seocalcitol (CAS 134404-52-7)
- 3-Oxours-12-en-28-oic Acid (CAS 6246-46-4)
- N-(4-bromophenyl)-4-hydrazinyl-4-oxobutanamide (CAS 443863-36-3)
- 1-(4-Fluorophenyl)-3-methyl-1h-pyrazolo[3,4-b]pyridine-5-carboxylic acid (CAS 926193-95-5)
- 1-(Selenophen-2-yl)ethanone (CAS 15429-03-5)
- 4-(Bromomethyl)-2-fluoro-1-nitrobenzene (CAS 131858-37-2)
- (S)-tert-Butyl (1-hydroxy-3-(2-oxo-1,2-dihydropyridin-3-yl)propan-2-yl)carbamate (CAS 2762442-44-2)
- Ethyl (2,3-Dihydro-1H-inden-5-ylamino)acetate (CAS 84827-40-7)
- 1-(3-chlorobenzoyl)piperidine-3-sulfonyl chloride (CAS 1461705-29-2)
- 4-(2-Methylphenyl)thiosemicarbazide (CAS 614-10-8)
- Vortioxetine Impurity 50 (CAS CATO-C4X-105650)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
Why CATO?
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