4-Oxo-4-(o-tolylamino)butanoic acid CAS 37600-45-6
| CAS No. | 37600-45-6 |
| Molecular Formula | C11H13NO3 |
| Molecular Weight | 207.23 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 4-Oxo-4-(o-tolylamino)butanoic acid.
4-Oxo-4-(o-tolylamino)butanoic acid (CAS 37600-45-6) is a high-purity analytical reference standard with the molecular formula C11H13NO3 and a molecular weight of 207.23 g/mol.
Structurally, 4-Oxo-4-(o-tolylamino)butanoic acid (C11H13NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 207.23 g/mol, it falls into the medium-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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Oxo-4-(o-tolylamino)butanoic 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 | C11H13NO3 |
| Molecular Weight | 207.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 4-Oxo-4-(m-tolylamino)butanoic acid (CAS 62134-48-9)
- 4-Oxo-4-(p-tolylamino)butanoic acid (CAS 37600-44-5)
- 4-Methyl-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepine-7-carboxylic acid (CAS 933703-66-3)
- 4-Oxo-4-[(phenylmethyl)amino]butanoic acid (CAS 64984-60-7)
- 1,3,5-Cyclohexanetricarbonitrile (cis- and trans- mixture) (CAS 183582-92-5)
- Methyl 3-chloro-1-methyl-1H-1,2,4-triazole-5-carboxylate (CAS 1823940-71-1)
- 2-((1-Chloro-2,2,2-trifluoroethyl)thio)ethan-1-ol (CAS 885460-97-9)
- 6-methoxy-4-oxo-1,4-dihydroquinoline-7-carboxylic acid (CAS 947763-44-2)
- 3-Bromo-5-(m-tolyl)pyridine (CAS 1070882-67-5)
- 4-Phenylpiperidin-2-one (CAS 81976-73-0)
- n-Butyl-2,3-dihydro-1h-inden-2-amine (CAS 39649-60-0)
- 2-chloro-1-(4-methyl-1-piperidinyl)-1-Propanone (CAS 885459-76-7)
- cis-2-aminocyclopentanecarbonitrile;2,2,2-trifluoroacetic acid (CAS 2250241-85-9)
- Peptide 435 (CAS CATO-CPTD788435)
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