Diltiazem malate CAS 144604-00-2
| CAS No. | 144604-00-2 |
| Molecular Formula | C22H26N2O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diltiazem malate (CAS 144604-00-2), molecular formula C22H26N2O4SC4H6O5 and molecular weight 548.61 g/mol, is a CATO reference standard with documented purity and traceability.
Diltiazem malate (C22H26N2O4SC4H6O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C22H26N2O4S C4H6O5 |
| Molecular Weight | 548.61 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Diltiazem Standards
- Diltiazem EP Impurity A HCl (CAS 103532-27-0)
- Diltiazem EP Impurity A HCl (CAS 111188-71-7(free base))
- Diltiazem D4 (CAS 112259-41-3)
- Diltiazem USP Related Compound H HCl (CAS 115992-91-1(Free Base))
- Diltiazem EP Impurity H HCl (CAS 115992-91-1(free base))
- Diltiazem Impurity 9 (CAS 116050-35-2)
- Diltiazem Impurity 23 (CAS 119009-50-6)
- Diltiazem-d3 Hydrochloride (CAS 1217623-80-7)
Recommended Standards
- (S,R,S)-AHPC-Me-CO-CH2-PEG3-NH2 (CAS 2409538-69-6)
- 3-tert-Butyl-4-methoxy-benzenesulfonyl chloride (CAS 69129-42-6)
- N,N'-((1R,2R)-1,2-Diphenylethane-1,2-diyl)bis(1,1,1-trifluoromethanesulfonamide) (CAS 121788-73-6)
- 4-(4-Formylphenoxy)benzoic acid (CAS 2509-18-4)
- 7,7-Dimethyl-2,5-dioxo-1-(p-tolyl)-1,2,5,6,7,8-hexahydroquinoline-3-carboxylic acid (CAS 799251-48-2)
- 2-Chloro-4-(trifluoromethyl)benzenesulfonamide (CAS 146533-47-3)
- ethyl 5-amino-4H-1,2,4-triazole-3-carboxylate;hydrochloride (CAS 385784-78-1)
- (R)-2-(4-(Methylsulfonyl)phenyl)pyrrolidine (CAS 1029650-29-0)
- 4-(4-Fluorophenyl)-2-(5-phenyl-1H-pyrazol-1-yl)-1,3-thiazole (CAS 956977-61-0)
- Peptide 434 (CAS CATO-CPTD788434)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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