1,3-Diphenyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione CAS 35221-12-6
| CAS No. | 35221-12-6 |
| Molecular Formula | C16H12N2O2S |
| Molecular Weight | 296.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 1,3-Diphenyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione (CAS 35221-12-6), a certified reference material (molecular formula C16H12N2O2S, MW 296.34 g/mol) for analytical method development and quality control.
Structurally, 1,3-Diphenyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione (C16H12N2O2S) 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 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 296.34 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.
Physical & Chemical Properties
| Molecular Formula | C16H12N2O2S |
| Molecular Weight | 296.34 g/mol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Diphenyl Standards
- 5-Methyl-2,3-diphenyl-1H-inden-1-one (CAS 65908-32-9)
- 1,4-Diphenyl-5,8-dihydro-5,8-methanophthalazine (CAS 203982-88-1)
- 2,4-Diphenyl-1H-benzo[b][1,4]diazepine (CAS 47301-30-4)
- 4,4-Diphenyl-1-piperidinepropanol (CAS 35985-34-3)
- 4-(4,5-Diphenyl-1H-imidazol-2-yl)pyridine (CAS 13319-97-6)
- (3,5-Diphenyl-1H,3H,5H-oxazolo[3,4-c]oxazol-7a(7H)-yl)methanol (CAS 36778-78-6)
- 1,2-Diphenyl-1H-indole-3-carbaldehyde (CAS 29329-99-5)
- (2,2-Diphenyl-ethyl)-carbamic acid tert-butyl ester (CAS 182921-04-6)
Recommended Standards
- 1-(4-Fluorophenyl)-6-methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole (CAS 404929-70-0)
- 1-Phenyl-2-((5-phenyl-1,3,4-oxadiazol-2-yl)thio)ethanone (CAS 74087-90-4)
- 1-(3-Fluorophenyl)-6-methoxy-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole (CAS 404929-75-5)
- 1-Tosyl-1H-indole-4-carbonitrile (CAS 31271-86-0)
- 5-Amino-2-(4-aminophenyl)benzofuran (CAS 84102-58-9)
- 1-((tert-Butyldimethylsilyl)oxy)butan-2-amine (CAS 811841-81-3)
- 4.6-Dibromo-3-fluoro-2-nitrotoluene (CAS 1427503-00-1)
- 2-(2-Phenoxyphenyl)hydrazine-1-carbothioamide (CAS 860609-84-3)
- (2S,4S)-1-(tert-Butoxycarbonyl)-4-(4-chloro-2-nitrophenoxy)-2-pyrrolidinecarboxylic acid (CAS 1354485-35-0)
- (3,4-Difluoro-5-propoxyphenyl)(methyl)sulfane (CAS 1379367-35-7)
- (3-bromo-4-methyl-2-nitrophenyl)methanol (CAS 1804866-97-4)
- Aliskiren hydrochloride (CAS 173399-03-6)
- 6-Chloro-2,4-dimethyl-2,3,4,9-tetrahydro-1h-carbazole (CAS 1484999-98-5)
- Allo-D-Ile17-Tirzepatide (CAS CATO-CPTD788962)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com