Clindamycin B 2-Phosphate Ammonium Salt CAS 54887-31-9 (free base)
| CAS No. | 54887-31-9 (free base) |
| Molecular Formula | C17H31ClN2O8PS |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Clindamycin B 2-Phosphate Ammonium Salt (CAS 54887-31-9 (free base)) is a high-purity analytical reference standard with the molecular formula C17H31ClN2O8PSH4N and a molecular weight of 507.96 g/mol.
Structurally, Clindamycin B 2-Phosphate Ammonium Salt (C17H31ClN2O8PSH4N) contains an amide group, a sulfone group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.5, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 507.96 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C17H31ClN2O8PS H4N |
| Molecular Weight | 507.96 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.5 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Clindamycin Standards
- Clindamycin Impurity 164 (CAS 1123211-65-3 (free base))
- Clindamycin Impurity 16 (CAS 1123211-66-4)
- Clindamycin Impurity 73 (CAS 1123211-66-4 (free base))
- Clindamycin Pentadecanoate HCl (CAS 1123211-67-5 (free base);)
- Clindamycin Heptadecanoate (CAS 1123211-69-7 (free base))
- Clindamycin Impurity 22 HCI (CAS 1123211-70-0（free base）)
- Clindamycin phosphate ester EP impurity F isomer (CAS 1149764-21-5)
- Clindamycin Phosphate Sulfoxide Impurity (CAS 1228573-90-7)
Recommended Standards
- Sodium 4-(benzylamino)benzenesulfonate (CAS 32339-03-0)
- 3-Ethyloctanoic acid (CAS 150176-82-2)
- Octyldecyl 2-acetamido-2-deoxy-β-D-glucopyranoside (CAS 173725-29-6)
- 4-((4-Methoxybenzyl)oxy)aniline (CAS 53234-92-7)
- 4-Chloro-2,3-dimethylbenzonitrile (CAS 90537-14-7)
- 2-(1-Bromoethyl)-1,4-difluorobenzene (CAS 655-10-7)
- n-((1,2,3-Thiadiazol-4-yl)methyl)-1-cyclohexylethan-1-amine (CAS 1250010-07-1)
- Tris-(2,2'-bipyridine)cobalt(II) bis(trifluoromethanesulfonimide) (CAS 1353745-90-0)
- 2-(4-Ethoxyphenyl)-3-hydroxy-4H-chromen-4-one (CAS 177587-97-2)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
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