4-(Methylanilino)-4-oxobutanoic acid CAS 33684-12-7
| CAS No. | 33684-12-7 |
| Molecular Formula | C11H13NO3 |
| Molecular Weight | 207.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(Methylanilino)-4-oxobutanoic 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.
CATO supplies 4-(Methylanilino)-4-oxobutanoic acid (CAS 33684-12-7), a certified reference material (molecular formula C11H13NO3, MW 207.23 g/mol) for analytical method development and quality control.
4-(Methylanilino)-4-oxobutanoic acid (C11H13NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1966 |
| Nitrogen Atoms | 1 |
Related Methylanilino Standards
- 2,5-bis(4-methylanilino)cyclohexa-1,4-diene-1,4-dicarboxylic acid dimethyl ester 7411-23-6 A838016 dimethyl 2,5-bis[(4-methylphenyl)amino]cyclohexa-1,4-diene-1,4-dicarboxylate (CAS 7411-23-6)
- 4-[2-(Methylanilino)ethoxy]aniline (CAS 345617-82-5)
- 2-[5-(4-Methylanilino)-2,4-dioxo-1,3-thiazolidin-3-yl]acetic acid (CAS 1008380-11-7)
- 2-[2-(Methylanilino)ethoxy]-5-(trifluoromethyl)aniline (CAS 946682-66-2)
- 4-{3-[(Methylanilino)carbonyl]anilino}-4-oxobutanoic acid (CAS 941466-07-5)
- 6-(4-Methylanilino)naphthalene-2-sulfonyl chloride (CAS 62778-24-9)
- 160822-47-9 4-(3-Methylanilino)pyridine-3-sulfonamide--hydrogen chloride (1/1) DTXSID60695739 (CAS 160822-47-9)
- 2-(N-methylanilino)acetic acid hydrochloride 2-[methyl(phenyl)amino]ethanoic acid hydrochloride 21911-75-1 A815752 (CAS 21911-75-1)
Recommended Standards
- 4-(Isopropylcarbamoyl)benzoic acid (CAS 779-47-5)
- 4-(N-Methyl-N-nitrosamino)-4-(3-pyridyl)butanal (CAS 64091-90-3)
- 4-(Isobutyrylamino)benzoic acid (CAS 28547-07-1)
- 4-(Pyridin-4-yl)tetrahydro-2H-pyran-4-carboxylic acid (CAS 920297-31-0)
- n-(2-(Pyridin-2-yl)ethyl)pentan-2-amine (CAS 1019592-68-7)
- Methyl 2-amino-4-fluoro-3-methoxybenzoate (CAS 2092362-15-5)
- 2-(Chloromethyl)-5-cyano-3-(difluoromethyl)-4-hydroxypyridine (CAS 1807023-34-2)
- 4-Chlorophenyl-4'-nitrophenyl ether (CAS 1836-74-4)
- tert-Butyl (2-methyl-2-(piperidin-4-yl)propyl)carbamate (CAS 2095411-22-4)
- 3-(chloromethyl)-1H-pyrrolo[2,3-b]pyridine (CAS 201537-87-3)
- Benzyl 3-(((2-aminoethyl)thio)methyl)piperidine-1-carboxylate (CAS 1353973-92-8)
- 1-Pivaloylpiperidine-4-carboxylic Acid (CAS 147958-90-5)
- n-((3-(2-Methoxyethyl)-1,2,4-oxadiazol-5-yl)methyl)aniline (CAS 1293138-72-3)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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