28-demethyl-28-ethyl-Rapamycin CAS 1290606-22-2
| CAS No. | 1290606-22-2 |
| Molecular Formula | C52H81NO13 |
| Molecular Weight | 928.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
28-demethyl-28-ethyl-Rapamycin (CAS 1290606-22-2) is a high-purity analytical reference standard with the molecular formula C52H81NO13 and a molecular weight of 928.20 g/mol.
Based on its molecular formula C52H81NO13, 28-demethyl-28-ethyl-Rapamycin contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 928.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C52H81NO13 |
| Molecular Weight | 928.20 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related demethyl Standards
- 7-O-Demethyl Rapamycin (CAS 151519-50-5)
- 5-O-demethyl-28-hydroxy-Avermectin A1a (CAS 96722-46-2)
- 3"-O-Demethyl Ivermectin (CAS 92137-95-6)
- N-Demethyl-N-Nitroso Rifampicin (CAS CATO-C4X-145610)
- 27-(demethyl) Rifampicin (CAS CATO-C4X-145612)
- 5-O-Demethyl-4,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-22,23-dihydro-Avermectin A1a (CAS 82590-57-6)
- 5-O-Demethyl-4,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-22,23-dihydro-28-oxo-Avermectin A1a (CAS 102190-51-2)
- 3-Demethyl Thiocolchicine 2-O-(2,3,4-Tri-O-acetyl-b-D-glucuronide Methyl Ester) (CAS 250662-47-6)
Recommended Standards
- Rapamycin Impurity 11 (CAS 159351-88-9)
- 33-Ethyl Rapamycin (CAS CATO-C4X-174617)
- Rapamycin Impurity 10 (CAS 157054-84-7)
- Rapamycin Impurity 23 (CAS CATO-C4X-174623)
- 3-Carboethoxy-3-(3-pyrrolinomethyl) benzophenone (CAS 898789-84-9)
- 2-[1-(2-Hydroxyethyl)-4-oxo-1,4-dihydro-5H-pyrazolo[3,4-d]pyrimidin-5-yl]acetamide (CAS 899971-27-8)
- 5-Bromo-4-chloro-3-indolylphosphate disodium salt (CAS 102185-33-1)
- 2-(Cyclopentyloxy)ethylamine Hydrochloride (CAS 1181457-94-2)
- N-(3-Hydroxy-2-iodopyridin-4-yl)pivalamide (CAS 1142192-39-9)
- 2-(Cyclopropylmethoxy)-5-fluorobenzaldehyde (CAS 883525-60-8)
- 3-((1-Propionylindoline)-5-sulfonamido)propanoic acid (CAS 899718-44-6)
- 5-Amino-3H-pyrazol-3-one (CAS 74586-24-6)
- 3,4,5-Trimethoxybenzaldehyde-d3 (4-methoxy-d3) (CAS 1219805-17-0)
- Polymyxin B nonapeptide TFA (CAS 2220175-42-6)
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