≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Canonical Smiles | C1=C2C(=NC=N1)C=NN2 |
|---|---|
| IUPAC Name | 1H-pyrazolo[4,3-d]pyrimidine |
| InChIKey | APXRHPDHORGIEB-UHFFFAOYSA-N |
| INCHI | 1S/C5H4N4/c1-5-4(2-8-9-5)7-3-6-1/h1-3H,(H,8,9) |
| Isomeric SMILES | C1=C2C(=NC=N1)C=NN2 |
| PubChem CID | 21083976 |
| Molecular Weight | 120.11 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
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View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Class | Pyrazolopyrimidines |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Pyrazolopyrimidines |
| Alternative Parents | Pyrimidines and pyrimidine derivatives Pyrazoles Heteroaromatic compounds Azacyclic compounds Organopnictogen compounds Organonitrogen compounds Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Pyrazolopyrimidine - Pyrimidine - Heteroaromatic compound - Pyrazole - Azole - Azacycle - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organonitrogen compound - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as pyrazolopyrimidines. These are compounds containing a pyrazolopyrimidine skeleton, which consists of a pyrazole fused to a pyrimidine. Pyrazole is 5-membered ring consisting of three carbon atoms and two adjacent nitrogen centers. Pyrimidine is 6-membered ring consisting of four carbon atoms and two adjacent nitrogen atoms at the 1- and 3- ring position. |
| External Descriptors | mancude organic heterobicyclic parent |
| Molecular Weight | 120.110 g/mol |
|---|---|
| XLogP3 | -0.100 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 0 |
| Exact Mass | 120.044 Da |
| Monoisotopic Mass | 120.044 Da |
| Topological Polar Surface Area | 54.500 Ų |
| Heavy Atom Count | 9 |
| Formal Charge | 0 |
| Complexity | 105.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
![1H-pyrazolo[4,3-d]pyrimidine - ≥97% , CAS No.272-57-1](https://www.aladdinsci.com/media/catalog/product/placeholder/default/default_4.jpg)