3-Hydroxy-2,3-dimethylpentanedioic acid CAS 87764-48-5
| CAS No. | 87764-48-5 |
| Molecular Formula | C7H12O5 |
| Molecular Weight | 176.17 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 3-Hydroxy-2,3-dimethylpentanedioic acid.
3-Hydroxy-2,3-dimethylpentanedioic acid (CAS 87764-48-5), molecular formula C7H12O5 and molecular weight 176.17 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Hydroxy-2,3-dimethylpentanedioic acid (C7H12O5) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
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 | C7H12O5 |
| Molecular Weight | 176.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1982 |
Related Hydroxy Standards
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- 1-(5-Hydroxy-1H-pyrrolo[2,3-b]pyridin-1-yl)ethanone (CAS 1082041-98-2)
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Recommended Standards
- 3-Hydroxy-1,4-dihydroquinoxaline-2-carbaldehyde (CAS 855874-32-7)
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- 3-Fluorobenzenesulfonic acid (CAS 657-47-6)
- 3-Hydroxy-4,4-dimethylglutaric Acid (CAS 927895-14-5)
- 2-(Difluoromethyl)-3,4,5-trihydroxypyridine (CAS 1361855-76-6)
- 1-t-butyl-6,7-difluoro-2-methylbenzodiazole (CAS 1393441-70-7)
- Didecyldimethylammonium Bromide (CAS 2390-68-3)
- 3-(5-Chlorothiophen-2-yl)-N'-(3-hydroxybenzylidene)-1H-pyrazole-5-carbohydrazide (CAS 303104-88-3)
- 5-Bromo-3-(cyclopropylmethyl)-1H-indole (CAS 2180130-55-4)
- Trans-3-hydroxy-1-methyl-5-(pyridin-3-yl)pyrrolidin-2-one (CAS 223655-46-7)
- Ethyl 2,2-dimethyltrifluoroacetoacetate (CAS 26717-76-0)
- 1,3,5-Tris[3-(pyridin-4-yl)-1H-pyrazol-1-yl]benzene (CAS 1616091-43-0)
- 2-(Isobutylamino)-2-methylpropanenitrile (CAS 1018291-88-7)
- (Glu9)-Exenatide (2-39) trifluoroacetate salt (CAS 196109-34-9)
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