Ursodeoxycholic Acid impurity 87 CAS CATO-C4X-142287
| CAS No. | CATO-C4X-142287 |
| Molecular Formula | C26H45NO6S |
| Molecular Weight | 499.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ursodeoxycholic Acid impurity 87 (CAS CATO-C4X-142287), a pharmacopoeial impurity reference standard (molecular formula C26H45NO6S, MW 499.70 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Ursodeoxycholic Acid impurity 87 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 499.70 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.
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 | C26H45NO6S |
| Molecular Weight | 499.70 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ursodeoxycholic Standards
- Ursodeoxycholic Acid impurity 101 (CAS CATO-C4X-1422101)
- Ursodeoxycholic Acid Impurity 120 (CAS CATO-C4X-1422120)
- Ursodeoxycholic Acid impurity 78 (CAS CATO-C4X-142278)
- Ursodeoxycholic Acid impurity 86 (CAS CATO-C4X-142286)
- Ursodeoxycholic Acid Impurity 122 (CAS CATO-C4X-1422122)
- Ursodeoxycholic acid impurity 29 (CAS CATO-C4X-142229)
- Ursodeoxycholic Acid impurity 83 (CAS 21066-20-6)
- Ursodeoxycholic Acid Impurity 69 (CAS CATO-C4X-142269)
Recommended Standards
- Taurohyodeoxycholic Acid Sodium Salt (CAS 2958-04-5)
- Tauroursodeoxycholic Acid (CAS 14605-22-2)
- Taurodeoxycholic Acid (CAS 516-50-7)
- Benzyl (3R,4R,5S)-3-hydroxy-4-(4-hydroxyphenyl)-5-((triisopropylsilyl)oxy)piperidine-1-carboxylate (CAS 873945-27-8)
- Lobeline impurity 16 (CAS 2469224-15-3)
- Thioctic acid Impurity 88 Sodium Salt (Mixture of Isomers) (CAS CATO-C4X-152688)
- Daclatasvir Impurity 3 (CAS 1009117-28-5)
- 4-[(4-Methylphenyl)methyl]-3-[1-(thiophene-3-carbonyl)piperidin-4-yl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775365-84-8)
- 4-(Trifluoromethoxy)-1,4'-bipiperidine (CAS 2306272-63-7)
- 2-Amino-2-(4-chloro-3-fluorophenyl)propan-1-ol (CAS 1270505-11-7)
- 2-Hydroxy-2-(5-oxo-2-phenylpyrazolidin-1-yl)acetic acid (CAS 100944-16-9)
- 2,2-dimethylbutanenitrile (CAS 20654-46-0)
- 4-(Aminomethyl)-3-methoxybenzoic acid (CAS 96053-20-2)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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