Minocycline Impurity 64 CAS CATO-C4X-169964
| CAS No. | CATO-C4X-169964 |
| Molecular Formula | C21H19IN2O7 |
| Molecular Weight | 538.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Minocycline Impurity 64.
CATO supplies Minocycline Impurity 64 (CAS CATO-C4X-169964), a pharmacopoeial impurity reference standard (molecular formula C21H19IN2O7, MW 538.29 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C21H19IN2O7, Minocycline Impurity 64 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 538.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 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.
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 | C21H19IN2O7 |
| Molecular Weight | 538.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Minocycline Standards
- Minocycline Impurity 67 (CAS CATO-C4X-169967)
- Minocycline Impurity 71 (CAS CATO-C4X-169971)
- Minocycline impurity 73 (CAS 156263-28-4)
- Minocycline Impurity 43 (CAS 28698-94-4)
- Minocycline Impurity 26 (CAS 149934-16-7)
- Minocycline EP Impurity G (CAS 601455-95-2)
- Minocycline Dehydro Impurity (CAS CATO-C4X-16995)
- Minocycline Impurity 54 (CAS CATO-C4X-169954)
Recommended Standards
- Bis-PEG2-PFP ester (CAS 1314378-18-1)
- 1-(5,5-Difluoro-7,9-dimethyl-5H-5lambda4,6lambda4-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinin-3-yl)-3-oxo-7,10,13,16-tetraoxa-4-azanonadecan-19-oate (CAS 2288761-92-0)
- Bromhexine L-Glucose Derivative (CAS CATO-C4X-106043)
- tert-Butyl 3-iodo-5-(1-(2-((tetrahydro-2H-pyran-2-yl)oxy)ethyl)-1H-pyrazol-4-yl)-1H-pyrrolo[2,3-b]pyridine-1-carboxylate (CAS 1254926-81-2)
- Finasteride Impurity 42 (CAS 116285-38-2)
- Labetalol Impurity 61 (CAS CATO-C4X-246661)
- Resmetirom Impurity 8 (CAS 1581304-46-2)
- 4-(Dimethoxymethyl)cyclohex-1-ene (CAS 7560-65-8)
- (5Z)-4-Chloro-N-(2-chloro-4-nitrophenyl)-5H-1,2,3-dithiazol-5-imine (CAS 303145-95-1)
- ent-Kaurane (CAS 1573-40-6)
- N-(4-Bromophenyl)-2-((5-(2-chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 332100-33-1)
- N-[5-(pyrrolidin-2-yl)-1,3,4-oxadiazol-2-yl]acetamide hydrochloride (CAS 1803597-80-9)
- 4-Ethyl-3-(pyridin-2-yl)-1h-pyrazol-5-amine (CAS 1312603-09-0)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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