Allopurinol Impurity 9 CAS 41621-10-7
| CAS No. | 41621-10-7 |
| Molecular Formula | C4H7N5O |
| Molecular Weight | 141.13 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Allopurinol Impurity 9 is closely related to an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Allopurinol Impurity 9 (CAS 41621-10-7) is a certified pharmaceutical impurity reference standard with the molecular formula C4H7N5O and a molecular weight of 141.13 g/mol.
Based on its molecular formula C4H7N5O, Allopurinol Impurity 9 contains an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 141.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Allopurinol Impurity 9 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 | C4H7N5O |
| Molecular Weight | 141.13 g/mol |
| 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 |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 5 |
Related Allopurinol Standards
- Allopurinol-13C3-15N (CAS CATO-C4X-145833)
- Allopurinol impurity 15 (CAS CATO-C4X-145815)
- Allopurinol-D2 (CAS 916979-34-5)
- Allopurinol (CAS 315-30-0)
- Allopurinol impurity 27 (CAS CATO-C4X-145827)
- Allopurinol Impurity 31 (CAS CATO-C4X-145831)
- Allopurinol impurity 25 (CAS 2303964-80-7)
- Allopurinol impurity 12 (CAS CATO-C4X-145812)
Recommended Standards
- Folic acid EP Impurity B (CAS 1004-75-7)
- Minoxidil Impurity 10 (CAS 79459-04-4)
- Linagliptin Impurity 74 (CAS 2434-53-9)
- Urapidil Impurity 38 (CAS CATO-C4X-192438)
- Bilastine impurity 134 (CAS CATO-C4X-2253134)
- Desloratadine Impurity 51 (CAS CATO-C4X-143051)
- Drospirenone EP Impurity H (CAS 932388-89-1)
- (E)-3-butoxy-1-(4-(methylthio)phenyl)prop-2-en-1-one (CAS 1375008-08-4)
- 2,4,6-Trimethylphenylglyoxal hydrate (CAS 142751-35-7)
- (4-Aminopyridin-2-yl)dimethylphosphine oxide (CAS 2309447-77-4)
- R36R9KVD6Y 478149-53-0 PHA-543613 UNII-R36R9KVD6Y (R)-N-(Quinuclidin-3-yl)furo(2,3-C)pyridine-5-carboxamide Furo(2,3-C)pyridine-5-carboxamide, N-(3R)-1-azabicyclo(2.2.2)oct-3-yl- J3.179.420J N-((3R)-1-Azabicyclo(2.2.2)oct-3-yl)furo(2,3-C)pyridine-5-carboxamide Pha-543,613 (CAS 478149-53-0)
- 2-(2,2-Dimethylbutanoyl)benzonitrile (CAS 898765-10-1)
- 6,7-dihydropyrrolo[3,4-b]pyrazin-5-one;hydrochloride (CAS 2624417-02-1)
- a-Bag Cell Peptide (1-8) (CAS 87549-53-9)
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