SR 1664 CAS 1338259-05-4
| CAS No. | 1338259-05-4 |
| Molecular Formula | C33H29N3O5 |
| Molecular Weight | 547.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including SR 1664.
CATO supplies SR 1664 (CAS 1338259-05-4), a certified reference material (molecular formula C33H29N3O5, MW 547.60 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, SR 1664 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 547.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), SR 1664 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 | C33H29N3O5 |
| Molecular Weight | 547.60 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Recommended Standards
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- BMS 181174 (CAS 95056-36-3)
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- 3'-Epilutein (CAS 52842-48-5)
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- tert-Butyl (R)-6-amino-2-azaspiro[3.4]octane-2-carboxylate hydrochloride (CAS 2413365-43-0)
- 5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-carbaldehyde (CAS 55293-96-4)
- 7-Chloro-2-methyl-5-oxo-N-(pyridin-4-ylmethyl)-5H-chromeno[2,3-b]pyridine-3-carboxamide (CAS 343375-48-4)
- 3-((4-Chlorophenyl)amino)-2,3-dihydrothiophene 1,1-dioxide (CAS 39565-75-8)
- 4-Hydroxytryptamine (CAS 570-14-9)
- Peptide 438 (CAS CATO-CPTD788438)
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