Calcitriol Impurity 5 CAS 116535-65-0
| CAS No. | 116535-65-0 |
| Molecular Formula | C13H23IO |
| Molecular Weight | 322.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Calcitriol Impurity 5 is closely related to a hydroxyl group, an ether linkage, iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Calcitriol Impurity 5 (CAS 116535-65-0), molecular formula C13H23IO and molecular weight 322.23 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a hydroxyl group, an ether linkage, iodine substitution, Calcitriol Impurity 5 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 322.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Calcitriol Impurity 5 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 | C13H23IO |
| Molecular Weight | 322.23 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | I-containing |
Related Calcitriol Standards
- Calcitriol Impurity 36 (CAS 66774-84-3)
- Calcitriol Impurity 29 (CAS 144848-24-8)
- Calcitriol Impurity 34 (CAS CATO-C4X-151034)
- Calcitriol Impurity 30 (CAS 69389-87-3)
- Calcitriol Impurity 63 (CAS CATO-C4X-151063)
- Calcitriol Impurity 64 (CAS CATO-C4X-151064)
- Calcitriol Impurity 65 (CAS CATO-C4X-151065)
- Calcitriol Impurity 10 (CAS 65445-15-0)
Recommended Standards
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- N-(4-bromophenyl)-2-(methylthio)benzamide (CAS 791804-73-4)
- N-Hydroxy Sertraline (CAS 124345-07-9)
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- 1-(3-Cyclopropyl-3-hydroxypropyl)-3-(thiophen-2-yl)urea (CAS 1396680-00-4)
- Methyl 1-methyl-1H-pyrrolo[3,2-b]pyridine-6-carboxylate (CAS 2121702-57-4)
- 6-Methyl-3-piperidinone (CAS 1194702-84-5)
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Why CATO?
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