(R)-2-Hydroxy-2-phenylpropionic Acid CAS 3966-30-1
| CAS No. | 3966-30-1 |
| Molecular Formula | C9H10O3 |
| Molecular Weight | 166.17 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 (R)-2-Hydroxy-2-phenylpropionic Acid.
(R)-2-Hydroxy-2-phenylpropionic Acid (CAS 3966-30-1), molecular formula C9H10O3 and molecular weight 166.17 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, (R)-2-Hydroxy-2-phenylpropionic Acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 166.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), (R)-2-Hydroxy-2-phenylpropionic Acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H10O3 |
| Molecular Weight | 166.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related R Standards
- 2-(3-Hydroxy-4-methylphenyl)acetic acid (CAS 103262-83-5)
- 2-Hydroxy-5-(2-hydroxyethyl)benzaldehyde (CAS 110005-81-7)
- (S)-2-Hydroxy-2-phenylpropionic Acid (CAS 13113-71-8)
- 3-Hydroxy-1-(2-hydroxyphenyl)propan-1-one (CAS 137709-27-4)
- 2-Hydroxy-3-methoxy-6-methylbenzaldehyde (CAS 143261-05-6)
- 147807-80-5 2-hydroxy-3-methoxy-4-methylbenzaldehyde (CAS 147807-80-5)
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Recommended Standards
- (R)-2-Hydroxy-2-(p-tolyl)acetic acid (CAS 31284-89-6)
- (r)-3-Hydroxy-3-phenylpropanoic acid (CAS 2768-42-5)
- (R)-2-Hydroxy-2-(o-tolyl)acetic acid (CAS 51359-72-9)
- (S)-(2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)methanol (CAS 98572-00-0)
- N-(4-(N-(1-Benzoyl-1,2,3,4-tetrahydroquinolin-7-yl)sulfamoyl)phenyl)butyramide (CAS 946290-31-9)
- 2-Phenoxy-1-phenylethanamine (CAS 16797-04-9)
- Lutetium(III) bromide xhydrate (CAS 29843-94-5)
- 1-Hexyl-2,3-dimethyl-1H-imidazol-3-ium tetrafluoroborate (CAS 384347-21-1)
- Paroxetine EP Impurity D HCl (CAS 130855-30-0)
- N-methyl-4-(2-nitrophenyl)-1,3-thiazol-2-amine (CAS 1007563-29-2)
- (S)-(1-((5-(tert-butyl)oxazol-2-yl)methyl)pyrrolidin-2-yl)methanol (CAS 1311779-07-3)
- N-(1-Benzoyl-1,2,3,4-tetrahydroquinolin-6-yl)butyramide (CAS 371123-79-4)
- 3-(Aminomethyl)pentan-3-ol (CAS 57728-32-2)
- Peptide 433 (CAS CATO-CPTD788433)
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