4,6-Dichloro-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine CAS 99971-84-3
| CAS No. | 99971-84-3 |
| Molecular Formula | C11H6Cl2N4 |
| Molecular Weight | 265.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,6-Dichloro-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine 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.
CATO supplies 4,6-Dichloro-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 99971-84-3), a certified reference material (molecular formula C11H6Cl2N4, MW 265.10 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 4,6-Dichloro-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 265.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C11H6Cl2N4 |
| Molecular Weight | 265.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Dichloro Standards
- 5,7-Dichloro-2-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidine (CAS 1232224-67-7)
- 4-[(4,6-Dichloro-2-pyrimidinyl)amino]benzonitrile-13C3 (CAS 1246818-77-8)
- Methyl 4,5-dichloro-3-(prop-2-yn-1-yloxy)thiophene-2-carboxylate (CAS 1708401-35-7)
- (1-((2,6-Dichloro-5-methoxypyrimidin-4-yl)oxy)cyclopropyl)methanol (CAS 1572048-46-4)
- 2,7-Dichloro-9H-xanthen-9-one (CAS 55103-01-0)
- 5-(2,4-Dichloro-5-fluorophenyl)-1,3,4-oxadiazole-2(3H)-thione (CAS 849132-72-5)
- 3,4-Dichloro-4-methylbenzophenone (CAS 125016-15-1)
- 1-(3’,4’-dichloro-1,1’-biphenyl-4-yl)ethanone (CAS 926254-63-9)
Recommended Standards
- 4-(Bromomethyl)-1-naphthoic Acid (CAS 30236-02-3)
- 4-Bromo-1-methoxy-2-Naphthalenecarboxaldehyde (CAS 514844-65-6)
- 4-((4,6-Dichloropyrimidin-2-yl)amino)benzonitrile (CAS 329187-59-9)
- 4-Bromonaphthalen-1-yl acetate (CAS 203204-53-9)
- CAS 2260669-85-8 (CAS 2260669-85-8)
- 18:1 TAP (DOTAP, MS salt) (CAS 144189-73-1)
- 1-(2,3,4,5-Tetrahydro-1H-3-benzazepin-7-yl)ethan-1-one (CAS 34685-20-6)
- Mirogabalin Impurity 206 (CAS CATO-C4X-2924206)
- 2-Chloro-N-(furan-2-ylmethyl)-4-methylaniline (CAS 1037138-41-2)
- 1-Bromo-3-(ethylsulfanyl)propane (CAS 83705-51-5)
- 2,4,6-Trichloro-5-iodopyrimidine (CAS 1137576-61-4)
- 5-Isopropoxy-1H-pyrazole-3-carboxylic acid (CAS 1344687-57-5)
- (R)-3,3-difluoropropane-1,2-diol (CAS 1026908-13-3)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
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