{7-chloro-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl}methanol CAS 1211580-75-4
| CAS No. | 1211580-75-4 |
| Molecular Formula | C7H7ClN4O |
| Molecular Weight | 198.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H7ClN4O, {7-chloro-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl}methanol contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 198.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
{7-chloro-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl}methanol (CAS 1211580-75-4) is a high-purity analytical reference standard with the molecular formula C7H7ClN4O and a molecular weight of 198.61 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), {7-chloro-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl}methanol 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.
Physical & Chemical Properties
| Molecular Formula | C7H7ClN4O |
| Molecular Weight | 198.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related chloro Standards
- 5-Chloro-6-methoxy-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190317-66-8)
- 4-Chloro-6-methoxy-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190322-16-7)
- 4-Chloro-5-methoxy-1H,2H,3H-pyrrolo[2,3-b]pyridin-2-one (CAS 1190322-44-1)
- 6-Chloro-4-methoxy-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190322-45-2)
- 5-Chloro-2,3-dihydro-1H-pyrrolo[3,2-b]pyridine-6-carboxylic acid (CAS 1194732-28-9)
- 6-Chloro-3-(methoxymethyl)[1,2,4]triazolo[4,3-b]pyridazine (CAS 1204296-35-4)
- 3-Chloro-1,8a-dihydroimidazo[1,2-a]pyridine-8-carboxylic acid (CAS 1257852-46-2)
- 2-Chloro-7,8-dihydro-5H-pyrano[4,3-d]pyrimidine-4-carbaldehyde (CAS 1260666-50-9)
Recommended Standards
- 5-(Chloromethyl)-2-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol (CAS 1211499-84-1)
- 4-Chloro-1-(isoxazol-4-ylmethyl)-1h-pyrazol-3-amine (CAS 1343742-61-9)
- N-(4-Chloro-6-formylpyridin-2-yl)acetamide (CAS 1393532-13-2)
- N-(6-Chloro-4-formylpyridin-2-yl)acetamide (CAS 1393569-07-7)
- 2-Oxotetrahydrofuran-3-carboxylic Acid (CAS 4360-91-2)
- 2-Cyclopropylpropane-1-sulfonyl chloride (CAS 1565675-37-7)
- 5-Bromo-N-(pyrazolo[1,5-a]pyridin-3-ylmethyl)nicotinamide (CAS 1396802-59-7)
- 1-(Sec-butyl)-4-chloro-1h-pyrazol-3-amine (CAS 1006470-47-8)
- Ethyl 2-Fluoro-4H-thieno[3,2-b]pyrrole-5-carboxylate (CAS 332099-22-6)
- Declopramide (CAS 891-60-1)
- 1-[(3-Chloro-2-fluorophenyl)methyl]-1,4-diazepane (CAS 1240574-31-5)
- Ethyl 3-chloro-4-((2-methylbenzyl)oxy)benzoate (CAS 1706445-82-0)
- 2,4-Difluoro-9H-fluoren-9-one (CAS 2969-68-8)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
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