11,12-Dimethoxy-2-((4-methylbenzyl)thio)-8,9,13b,14-tetrahydro-6H-[1,2,4]triazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinolin-6-one CAS 685109-13-1
| CAS No. | 685109-13-1 |
| Molecular Formula | C26H25N5O3S |
| Molecular Weight | 487.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 11,12-Dimethoxy-2-((4-methylbenzyl)thio)-8,9,13b,14-tetrahydro-6H-[1,2,4]triazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinolin-6-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 487.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO supplies 11,12-Dimethoxy-2-((4-methylbenzyl)thio)-8,9,13b,14-tetrahydro-6H-[1,2,4]triazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinolin-6-one (CAS 685109-13-1), a certified reference material (molecular formula C26H25N5O3S, MW 487.57 g/mol) for analytical method development and quality control.
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 | C26H25N5O3S |
| Molecular Weight | 487.57 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 |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Dimethoxy Standards
- 8,11-Dimethoxy-13-(3-(trifluoromethyl)benzyl)-6,13-dihydro-5H-indolo[3,2-c]acridine (CAS 860787-16-2)
- 5-(5,6-Dimethoxy-1H-benzo[d]imidazol-1-yl)-3-((2-(methylsulfonyl)benzyl)oxy)thiophene-2-carboxylic acid (CAS 1007698-63-6)
- 6,7-Dimethoxy-2-((pyridin-4-ylmethyl)thio)-3-(3-(trifluoromethyl)benzyl)quinazolin-4(3H)-imine (CAS 691868-98-1)
- 1-(4,5-Dimethoxy-2-nitrophenyl)ethyl 2-(6-hydroxybenzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylate (CAS 154140-55-3)
- 6,7-Dimethoxy-2-{[(4-nitrophenyl)methyl]sulfanyl}-3-octyl-3,4-dihydroquinazolin-4-imine (CAS 860789-61-3)
- (3,3-Dimethoxy-1-{[(4-methylbenzenesulfonyl)oxy]methyl}cyclobutyl)methyl 4-methylbenzene-1-sulfonate (CAS 1023815-74-8)
- 3,4-Dimethoxy-N'-(2-(3-methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)thiazole-4-carbonyl)benzenesulfonohydrazide (CAS 956782-90-4)
- 6,7-Dimethoxy-3-(thiophen-2-ylmethyl)-2-((4-(trifluoromethyl)benzyl)thio)quinazolin-4(3H)-imine (CAS 691858-13-6)
Recommended Standards
- CM-352, >98% (HPLC) (CAS 1664361-37-8)
- BMS 566419 (CAS 566161-24-8)
- 2-(4-(Diphenylamino)phenyl)-9H-thioxanthen-9-one 10,10-dioxide (CAS 1623010-63-8)
- Ethyl 1-(4-oxo-5-((1-phenyl-3-(pyridin-4-yl)-1H-pyrazol-4-yl)methylene)-4,5-dihydrothiazol-2-yl)piperidine-4-carboxylate (CAS 7061-41-8)
- 5-Bromo-2-fluorotoluene (CAS 51437-00-4)
- Tert-butyl (R)-3-(1-(((benzyloxy)carbonyl)amino)-2-methoxy-2-oxoethyl)azetidine-1-carboxylate (CAS 1620451-53-7)
- 3-ethynyl-3-fluoro-piperidine;hydrochloride (CAS 2306263-18-1)
- 1-[2-nitro-4-(trifluoromethyl)phenyl]piperazine hydrochloride (CAS 470472-16-3)
- 1,2-Bis(2-bromophenyl)-5,6,7,8-tetrahydroquinazoline-4(1H)-thione (CAS 62721-85-1)
- 70849-16-0 D-[2-13C]mannose (CAS 70849-16-0)
- 1,2,5-Thiadiazole-3,4-diamine 1,1-dioxide (CAS 55904-35-3)
- Forskolin Hemisuccinate (CAS 83797-56-2)
- L-165041 (CAS 79558-09-1)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
Why CATO?
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