Milbemycin Oxime CAS 129496-10-2
| CAS No. | 129496-10-2 |
| Molecular Formula | C32H45NO7 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Milbemycin Oxime is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 1097.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Milbemycin Oxime (CAS 129496-10-2), molecular formula C32H45NO7C31H43NO7 and molecular weight 1097.40 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C32H45NO7 C31H43NO7 |
| Molecular Weight | 1097.40 g/mol |
| Purity | >95% |
| 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 2 |
Related Milbemycin Standards
- Milbemycin Oxime EP Impurity H (CAS 1025877-03-5)
- Milbemycin A3 Oxime (CAS 114177-14-9)
- Milbemycin (CAS 51570-36-6)
- Milbemycin Oxime EP Impurity A (CAS 51596-11-3)
- Milbemycin Impurity 5 (CAS 51596-12-4)
- Milbemycin D (CAS 77855-81-3)
- Milbemycin Oxime EP Impurity E (CAS 86691-97-6)
- Milbemycin Oxime EP Impurity F (CAS 86691-98-7)
Recommended Standards
- 2-Amino-2-(1,1-dioxo-1lambda6-thiolan-3-yl)acetic acid (CAS 1218504-97-2)
- Sodium ((2R,3S,4R,5R)-3,4-dihydroxy-5-(6-oxo-1,6-dihydro-9H-purin-9-yl)tetrahydrofuran-2-yl)methyl diphosphate (CAS 71672-86-1)
- 3-Amino-4-methylbenzenethiol (CAS 719262-57-4)
- (R)-tert-Butyl 3-((6-bromopyridin-2-yl)thio)pyrrolidine-1-carboxylate (CAS 1353999-47-9)
- 4-(Aminomethyl)-2-fluoroaniline (CAS 164648-88-8)
- (R)-Methyl 4-(5-methyl-7-oxo-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazine-1-carboxylate (CAS 1369532-11-5)
- 1-(pyridine-4-carbonyl)piperidine-3-carboxylic acid 67691-63-8 Z228588822 (CAS 67691-63-8)
- N-[1-((S)-2-Amino-propionyl)-pyrrolidin-3-yl]-acetamide (CAS 1354026-61-1)
- Axitinib Impurity 76 (CAS CATO-C4X-107176)
- Tirzepatide Impurity 51 (CAS CATO-C4X-324051)
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