(R)-2-Amino-3-((7-methyl-5-oxo-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-2-yl)thio)propanoic acid CAS 75607-63-5
| CAS No. | 75607-63-5 |
| Molecular Formula | C9H10N4O3S2 |
| Molecular Weight | 286.33 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 (R)-2-Amino-3-((7-methyl-5-oxo-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-2-yl)thio)propanoic acid.
(R)-2-Amino-3-((7-methyl-5-oxo-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-2-yl)thio)propanoic acid (CAS 75607-63-5), molecular formula C9H10N4O3S2 and molecular weight 286.33 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (R)-2-Amino-3-((7-methyl-5-oxo-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-2-yl)thio)propanoic acid (C9H10N4O3S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 286.33 g/mol, it falls into the medium-molecular-weight range. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C9H10N4O3S2 |
| Molecular Weight | 286.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
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Recommended Standards
- (E)-3-(3-(dimethylamino)acryloyl)-5-hydroxy-5-methyl-4-phenyl-1,5-dihydro-2H-pyrrol-2-one (CAS 343375-37-1)
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- (S,R)-In-Quinox (CAS 2055935-90-3)
- 1-((2-Bromophenyl)thio)-3-methoxypropan-2-one (CAS 1511752-20-7)
- 7-Methoxy-2,3,4,5-tetrahydro-1H-benzo[b]azepine (CAS 46180-98-7)
- 2-Propoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1073371-87-5)
- tert-Butyl (2-bromo-3-nitrophenyl)carbamate (CAS 1260764-95-1)
- 3,4-Diphenyl-5H-furan-2-one (CAS 5635-16-5)
- 2-(Chloromethyl)-7-methoxy-1H-benzo[d]imidazole (CAS 405173-83-3)
- tert-Butyl (2-nitro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (CAS 855738-60-2)
- 4,6-Dichloro-2-phenyl-quinazoline (CAS 54665-93-9)
- 2-(3-Bromo-5-methylphenyl)-5-methylmorpholine (CAS 1956365-63-1)
- Semaglutide Impurity 137 (x TFA Salt) (CAS CATO-C4X-2226137)
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