1'-Methyl-6',7',8',9'-tetrahydrospiro[cyclohexane-1,5'-thiazolo[3,2-a]quinazoline] hydrobromide CAS 21457-11-4
| CAS No. | 21457-11-4 |
| Molecular Formula | C16H22N2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1'-Methyl-6',7',8',9'-tetrahydrospiro[cyclohexane-1,5'-thiazolo[3,2-a]quinazoline] hydrobromide (CAS 21457-11-4), a certified reference material (molecular formula C16H22N2SHBr, MW 355.34 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H22N2SHBr, 1'-Methyl-6',7',8',9'-tetrahydrospiro[cyclohexane-1,5'-thiazolo[3,2-a]quinazoline] hydrobromide contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 355.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C16H22N2S HBr |
| Molecular Weight | 355.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 2',3',4',9'-Tetrahydrospiro[cyclohexane-1,1'-pyrido[3,4-b]indole]-3'-carboxylic acid (CAS 100068-46-0)
- 2',4',5',6'-Tetrahydrospiro[cyclopropane-1,7'-pyrazolo[4,3-c]pyridine] hydrochloride (CAS 1028320-39-9)
- 2',3',5',6'-Tetrahydrospiro[quinazoline-2(1H),4'-[4H]thiopyran]-4(3H)-one (CAS 1031148-75-0)
- 5-Methyl-1,2,4,5-tetrahydrospiro[benzo[c]azepine-3,1'-cycloheptane] (CAS 1049742-94-0)
- 2-(3,5,6,7-Tetrahydrospiro[imidazo[4,5-c]pyridine-4,4'-piperidin]-1'-yl)ethan-1-amine (CAS 1092292-62-0)
- Methyl 2',3',4',9'-tetrahydrospiro[cyclohexane-1,1'-pyrido[3,4-b]indole]-3'-carboxylate (CAS 113247-25-9)
- 2,4,6,7-Tetrahydrospiro[indazole-5,2'-[1,3]dioxolane] hydrochloride (CAS 1160245-61-3)
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Recommended Standards
- 2-Chlorobenzyl Thiocyanate (CAS 2082-66-8)
- 3-Benzyl-6-(thiophen-2-yl)isoxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 1263210-41-8)
- 4-(4-Methyl-5-((2-methylbenzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine (CAS 577698-43-2)
- 2-chloro-N-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)acetamide (CAS 496056-85-0)
- (3r)-3-Amino-4-(4-fluorophenyl)butanoic acid hydrochloride (CAS 331763-69-0)
- Isopropylsulfonamide (CAS 81363-76-0)
- Methyl 4-(2-chloroethyl)benzoate (CAS 65787-72-6)
- (8-Methylquinolin-7-yl)boronic acid (CAS 2098697-58-4)
- Methyl 3-amino-4-methyl-5-(pentyloxy)benzoate (CAS 1429902-94-2)
- Semaglutide Impurity 188 (CAS CATO-C4X-2226188)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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