rac 5-Hydroxy valproic acidDISCONTINUED PLEASE SEE H993010 CAS 53660-23-4
| CAS No. | 53660-23-4 |
| Molecular Formula | C8H16O3 |
| Molecular Weight | 160.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| 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 rac 5-Hydroxy valproic acidDISCONTINUED PLEASE SEE H993010.
rac 5-Hydroxy valproic acidDISCONTINUED PLEASE SEE H993010 (CAS 53660-23-4), molecular formula C8H16O3 and molecular weight 160.21 g/mol, is a CATO reference standard with documented purity and traceability.
rac 5-Hydroxy valproic acidDISCONTINUED PLEASE SEE H993010 (C8H16O3) contains a carboxylic acid 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.
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 | C8H16O3 |
| Molecular Weight | 160.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1972 |
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Recommended Standards
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- rac-2-[(1R,2S)-2-phenylcyclopropyl]acetaldehyde (CAS 1989637-89-9)
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- 5-[1-(4-Chloro-phenyl)-1H-tetrazol-5-yl]-4-phenyl-pyrimidin-2-ylamine (CAS 139393-52-5)
- N-(3-(1H-imidazol-1-yl)propyl)-4-(2-phenylacetyl)-1H-pyrrole-2-carboxamide (CAS 478249-32-0)
- tert-butyl N-(5-methylpyrrolidin-3-yl)carbamate (CAS 1824321-49-4)
- 3-Chloro-5-(2,5-dimethoxyphenyl)-1,2,4-triazine (CAS 1368788-86-6)
- 3-Fluoro-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)isonicotinamide (CAS 903522-31-6)
- 2-(1-(2,2,2-Trifluoroethyl)azetidin-3-yl)acetic acid (CAS 1341888-85-4)
- 81988-89-8 UH11FDQ454 Ramoplanin A(sub 3) Ramoplanin A3 (S)-2-(3-Chloro-4-hydroxyphenyl)-N-(N(sup 2)-((2Z,4Z)-8-methyl-2,4-nonadienoyl)-(S)-asparaginyl-(2S,3S)-3-hydroxyasparaginyl-(R)-2-(p-hydroxyphenyl)glycyl-(R)-ornithyl-(2R,3R)-allothreonyl-2-(p-hydroxyphenyl)glycyl-2-(p-hydroxyphenyl)glycyl-(2S,3S)-allothreonyl-(S)-phenylalanyl-(R)-ornithyl-(S)-2-(p-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycyl-(2R,3R)-allothreonyl-(S)-2-(p-hydroxyphenyl)glycylglycyl-(S)-leucyl-(R)-alanyl)glycine psi1-lactone Ramoplanin A 1 (peptide moiety), 1-(N(sup 2)-methyl-1-oxo-2,4-nonadienyl)-L-asparagine)-11-(L-2-(4-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycine)-, (Z,Z)- UNII-UH11FDQ454 (CAS 81988-89-8)
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