1-(tert-Butoxycarbonyl)-5'-methyl-4',5'-dihydrospiro[piperidine-4,7'-thieno[2,3-c]pyran]-2'-carboxylic acid CAS 2088333-65-5
| CAS No. | 2088333-65-5 |
| Molecular Formula | C18H25NO5S |
| Molecular Weight | 367.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(tert-Butoxycarbonyl)-5'-methyl-4',5'-dihydrospiro[piperidine-4,7'-thieno[2,3-c]pyran]-2'-carboxylic acid (C18H25NO5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
1-(tert-Butoxycarbonyl)-5'-methyl-4',5'-dihydrospiro[piperidine-4,7'-thieno[2,3-c]pyran]-2'-carboxylic acid (CAS 2088333-65-5), molecular formula C18H25NO5S and molecular weight 367.46 g/mol, is a CATO reference standard with documented purity and traceability.
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), 1-(tert-Butoxycarbonyl)-5'-methyl-4',5'-dihydrospiro[piperidine-4,7'-thieno[2,3-c]pyran]-2'-carboxylic acid 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 | C18H25NO5S |
| Molecular Weight | 367.46 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related tert Standards
- 1-(8-(tert-Butoxycarbonyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-3-yl)piperidine-4-carboxylic acid (CAS 1251003-31-2)
- (4-(2-((Tert-butoxycarbonyl)(cyclopentyl)amino)ethoxy)-3-fluorophenyl)boronic acid (CAS 1704096-01-4)
- (4-(2-(4-(Tert-butoxycarbonyl)piperazin-1-yl)ethoxy)-3-fluorophenyl)boronic acid (CAS 1704064-14-1)
- 2-(6-(Tert-butoxycarbonyl)-1-oxo-2,6-diazaspiro[4.5]decan-2-yl)-3-cyclopropylpropanoic acid (CAS 2755949-46-1)
- 2-(4-(Tert-butoxycarbonyl)-3,3-dimethyl-2-oxo-1,4-diazaspiro[5.6]dodecan-1-yl)acetic acid (CAS 957122-34-8)
- 2-((tert-Butoxycarbonyl)amino)-2-(4-((tert-butoxycarbonyl)amino)phenyl)acetic acid (CAS 88197-41-5)
- (3-(4-(Tert-butoxycarbonyl)piperazine-1-carbonyl)-4-chlorophenyl)boronic acid (CAS 1704082-12-1)
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Recommended Standards
- (Z)-4-(4-Methoxyphenyl)-3-morpholino-N-phenylthiazol-2(3H)-imine (CAS 886906-75-8)
- 1-[(2-Methoxynaphthalen-1-yl)sulfinyl]-4-(pyridin-2-yl)piperazine (CAS 477762-10-0)
- (S)-1-(tert-Butoxycarbonyl)-5'-methyl-4',5'-dihydrospiro[piperidine-4,7'-thieno[2,3-c]pyran]-2'-carboxylic acid (CAS 2088333-67-7)
- 2-(((5-Methyl-2-(m-tolyl)oxazol-4-yl)methyl)thio)-5,6,7,8-tetrahydroquinazolin-4(3H)-one (CAS 902588-62-9)
- H-Met-Met-Ala-OH (CAS 14486-08-9)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-methylpentanoic acid (CAS 2250198-69-5)
- 1-(2-Chloro-4-(methylsulfonyl)phenyl)piperazine (CAS 849035-72-9)
- 2-(3-Bromo-2-oxoindolin-3-yl)acetic acid (CAS 64230-47-3)
- Benzhexol Impurity 15（Proadifen） (CAS 302-33-0)
- (S)-Methyl 2-amino-3-(4-(trifluoromethoxy)phenyl)propanoate (CAS 682328-60-5)
- 2-[4-(4-methylphenyl)-2-sulfanylidene-2,3-dihydro-1,3-thiazol-3-yl]acetic acid (CAS 554407-96-4)
- N-Methyl-1-(3-phenylisoxazol-5-yl)methanamine oxalate (CAS 1260897-42-4)
- 2-Bromo-5-(oxetan-3-ylmethoxy)pyrimidine (CAS 1935275-21-0)
- [2-31]-Semaglutide C (x TFA Salt) (CAS CATO-C4X-2226118)
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