8-(3,4-Dimethoxyphenyl)-7-methyl-1,3-dipropyl-1H-purine-2,6(3H,7H)-dione CAS 152881-18-0
| CAS No. | 152881-18-0 |
| Molecular Formula | C20H26N4O4 |
| Molecular Weight | 386.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 8-(3,4-Dimethoxyphenyl)-7-methyl-1,3-dipropyl-1H-purine-2,6(3H,7H)-dione (CAS 152881-18-0), a certified reference material (molecular formula C20H26N4O4, MW 386.44 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 8-(3,4-Dimethoxyphenyl)-7-methyl-1,3-dipropyl-1H-purine-2,6(3H,7H)-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 386.44 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.
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 | C20H26N4O4 |
| Molecular Weight | 386.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Nitrogen Atoms | 4 |
Related Dimethoxyphenyl Standards
- 2-((3,4-Dimethoxyphenyl)amino)-1-(1h-indol-3-yl)-2-phenylethan-1-one (CAS 924712-67-4)
- 1-(3,4-Dimethoxyphenyl)-3-(2,3,5,6-tetramethylphenyl)isobenzofuran (CAS 62422-87-1)
- 5-[3-(3,4-dimethoxyphenyl)-5-(furan-2-yl)-4,5-dihydro-1h-pyrazol-1-yl]-5-oxopentanoic acid (CAS 799258-14-3)
- N-(4-(2,5-Dimethoxyphenyl)thiazol-2-yl)-5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxamide (CAS 854135-46-9)
- 1-(3,4-Dimethoxyphenyl)-3-((2,3,4,5,6-pentamethylbenzyl)thio)propan-1-one (CAS 882749-35-1)
- 1-[(3,4-Dimethoxyphenyl)sulfonyl]-4-ethynyl-1,4-dihydro-4-methyl-2H-3,1-benzoxazin-2-one (CAS 2808410-67-3)
- N-(3,5-Dimethoxyphenyl)-3-phenylcinnoline-4-carboxamide (CAS 883004-78-2)
- 2-(3,4-Dimethoxyphenyl)-1-(4-methoxyphenyl)-6-oxopiperidine-3-carboxylic acid (CAS 851721-84-1)
Recommended Standards
- Tert-butyl (R)-(5-(5-amino-2-fluorophenyl)-2,5-dimethyl-1,1-dioxido-5,6-dihydro-2H-1,2,4-thiadiazin-3-yl)carbamate (CAS 1286776-35-9)
- Tofisopam Impurity 6 (CAS 15462-91-6)
- (S)-Benzyl (3-(3,4-dimethoxyphenyl)-1-(dimethylamino)-1-oxopropan-2-yl)carbamate (CAS 1263078-27-8)
- (4AR,6R,7R,8S,8aR)-7,8-Bis(benzyloxy)-2-methyl-hexahydropyrano[3,2-d][1,3]dioxin-6-ol (CAS 170078-65-6)
- 2-(Difluoromethyl)-6-hydroxypyridine-4-carbonyl chloride (CAS 1805315-89-2)
- 6-Chloro-2,3-dihydro-1H-inden-1-amine hydrochloride (CAS 1191908-38-9)
- (3-Iodonaphthalen-2-yl)methanol (CAS 129593-44-8)
- Palonosetron Impurity 12 DiHCl (CAS 177793-80-5(free base))
- 4-Nitro-5,6,7,8-tetrahydronaphthalene-1-carboxylic acid (CAS 95092-69-6)
- H-Cys(Bzl)-pNA (CAS 7436-62-6)
- 1100AE 3-Chloro-N-(3,5-dimethylphenyl)propanamide 349097-67-2 C11H14ClNO (CAS 349097-67-2)
- Ethyl (R)-3-(4,4-difluoropyrrolidin-2-yl)propanoate (CAS 2869831-64-9)
- 4-Bromo-1-(piperidin-4-yl)-1H-indazole (CAS 186407-76-1)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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