5,7-Dimethyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine CAS 929971-57-3
| CAS No. | 929971-57-3 |
| Molecular Formula | C8H13N3 |
| Molecular Weight | 151.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5,7-Dimethyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine (CAS 929971-57-3), a certified reference material (molecular formula C8H13N3, MW 151.21 g/mol) for analytical method development and quality control.
The molecular framework of 5,7-Dimethyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine (C8H13N3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 5,7-Dimethyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H13N3 |
| Molecular Weight | 151.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Dimethyl Standards
- 3,3-dimethyl-2-oxocyclohexane-1-carbonitrile (CAS 10219-83-7)
- 1,3-Dimethyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine (CAS 1083317-78-5)
- 3,8-Dimethyl-5H,6H,7H,8H-imidazo[1,2-a]pyrazine (CAS 1174645-56-7)
- 4,4-Dimethyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-2-amine (CAS 1229456-33-0)
- 2,3-dimethyl-5H,6H,7H,8H-imidazo[1,2-a]pyrazine (CAS 1250515-54-8)
- 5-Ethyl-3,4-dimethyl-1H-pyrrole-2-carbaldehyde (CAS 129991-86-2)
- 1,4-Dimethyl-7-oxabicyclo[2.2.1]heptane-2-carbonitrile (CAS 1315366-09-6)
- 4,6-Dimethyl-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine (CAS 1369340-11-3)
Recommended Standards
- 5-(Hydroxymethyl)bicyclo[3.1.1]Heptane-1-carbonitrile (CAS 2091771-49-0)
- 5-Amino-2-isopropylphenol (CAS 850085-99-3)
- 5-(Cyclobutylmethyl)-3-methylisoxazole (CAS 921588-27-4)
- 5-Butylpyrimidin-2-amine (CAS 39268-73-0)
- 2-{[6-chloro-2-(4-chlorophenyl)-1H-1,3-benzodiazol-1-yl]oxy}acetic acid (CAS 338978-90-8)
- 4-[(1-Pyrrolindino)methyl]phenylmagnesium bromide, 0.25M THF (CAS 480424-78-0)
- (R)-(2-Naphthalen-2-yl)pyrrolidine-1-carboxylic acid tert-butyl ester (CAS 1314325-20-6)
- 5-Methylbenzo(B)Thiophene (CAS 14315-14-1)
- 6,7-Dihydro-2-phenyl-5H-Pyrrolo[2,1-c]-1,2,4-triazolium tetrafluoroborate (CAS 909122-64-1)
- 1-Chloro-2-isopropoxybenzene (CAS 42489-57-6)
- 2-Chloro-6-ethylthieno[2,3-d]pyrimidine (CAS 1225634-75-2)
- 4-Chloro-2-(3-methoxyphenyl)-5-(methylamino)pyridazin-3(2H)-one (CAS 84607-75-0)
- Phenylephrine Impurity 45 (CAS 2491-37-4)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
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