OTS 964 CAS 1338545-07-5
| CAS No. | 1338545-07-5 |
| Molecular Formula | C23H24N2O2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), OTS 964 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.
CATO supplies OTS 964 (CAS 1338545-07-5), a certified reference material (molecular formula C23H24N2O2SHCl, MW 428.97 g/mol) for analytical method development and quality control.
Based on its molecular formula C23H24N2O2SHCl, OTS 964 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 428.97 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C23H24N2O2S HCl |
| Molecular Weight | 428.97 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
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- Sodium Taurocholate (CAS 145-42-6)
- Rizatriptan impurity 19 Benzoic acid (CAS 1391062-44-4 (free base))
- Dimethyl 3,3-dimethyl-3H-pyrazole-4,5-dicarboxylate (CAS 13566-26-2)
- 2-(4-Amino-1,3-dioxoisoindolin-2-yl)ethyl acetate (CAS 519019-57-9)
- 3-(Hydroxymethyl)pyrazine-2-carboxamide (CAS 40108-00-7)
- 5-MEthyl-4-piperidin-2-ylpyrimidine dihydrochloride (CAS 1380777-57-0)
- tert-butyl N-(6-bromopyrazolo[1,5-a]pyridin-3-yl)carbamate (CAS 2306273-07-2)
- Tau Peptide (337-368) (Repeat 4 Domain) trifluoroacetate salt (CAS 330456-27-4)
Why CATO?
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