Determine the necessary mass, volume, or concentration for preparing a solution.
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≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C,Protected from light Ships Wet ice 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.
Pemirolast Potassium is the potassium salt form of pemirolast, a pyrimidinone derivative with antiallergic property. Pemirolast potassium exerts its action by blocking the antigen-mediated calcium ion influx into mast cells.
| Pubchem Sid | 488189815 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488189815 |
| Canonical Smiles | CC1=CC=CN2C1=NC=C(C2=O)C3=NN=N[N-]3.[K+] |
| IUPAC Name | potassium;9-methyl-3-(1,2,3-triaza-4-azanidacyclopenta-2,5-dien-5-yl)pyrido[1,2-a]pyrimidin-4-one |
| InChIKey | NMMVKSMGBDRONO-UHFFFAOYSA-N |
| INCHI | 1S/C10H7N6O.K/c1-6-3-2-4-16-9(6)11-5-7(10(16)17)8-12-14-15-13-8;/h2-5H,1H3;/q-1;+1 |
| Isomeric SMILES | CC1=CC=CN2C1=NC=C(C2=O)C3=NN=N[N-]3.[K+] |
| WGK Germany | 3 |
| Alternate CAS | 69372-19-6 |
| Molecular Weight | 266.3 |
| Reaxy-Rn | 8097604 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=8097604&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Class | Pyridopyrimidines |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Pyridopyrimidines |
| Alternative Parents | Pyrimidones Methylpyridines Tetrazoles Heteroaromatic compounds Lactams Azacyclic compounds Organopnictogen compounds Organooxygen compounds Organonitrogen compounds Organic zwitterions Organic potassium salts Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Pyridopyrimidine - Methylpyridine - Pyrimidone - Pyridine - Pyrimidine - Azole - Heteroaromatic compound - Tetrazole - Lactam - Azacycle - Organic alkali metal salt - Organic nitrogen compound - Organic zwitterion - Organic salt - Organic potassium salt - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Organooxygen compound - Organonitrogen compound - Organic oxygen compound - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as pyridopyrimidines. These are compounds containing a pyridopyrimidine, which consists of a pyridine fused to a pyrimidine. Pyridine is 6-membered ring consisting of five carbon atoms and a nitrogen atom. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions. |
| External Descriptors | Not available |
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Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | May 20, 2026 | P129261 | |
| Certificate of Analysis | May 20, 2026 | P129261 | |
| Certificate of Analysis | Feb 07, 2025 | P129261 | |
| Certificate of Analysis | Feb 07, 2025 | P129261 | |
| Certificate of Analysis | Feb 07, 2025 | P129261 | |
| Certificate of Analysis | Feb 07, 2025 | P129261 | |
| Certificate of Analysis | Feb 07, 2025 | P129261 | |
| Certificate of Analysis | Oct 16, 2024 | P129261 | |
| Certificate of Analysis | Mar 16, 2023 | P129261 | |
| Certificate of Analysis | Mar 16, 2023 | P129261 |
| Solubility | Soluble in methanol, water (53 mg/ml at 25 °C), DMSO (<1 mg/ml at 25 °C), and ethanol (<1 mg/ml at 25 °C). |
|---|---|
| Sensitivity | light & heat & moisture sensitive |
| Melt Point(°C) | 317℃ |
| Molecular Weight | 266.300 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 1 |
| Exact Mass | 266.032 Da |
| Monoisotopic Mass | 266.032 Da |
| Topological Polar Surface Area | 72.300 Ų |
| Heavy Atom Count | 18 |
| Formal Charge | 0 |
| Complexity | 495.000 |
| 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 | 2 |