p-Methylbenzylidene p-butylaniline CAS 38549-81-4
| CAS No. | 38549-81-4 |
| Molecular Formula | C18H21N |
| Molecular Weight | 251.37 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 p-Methylbenzylidene p-butylaniline.
p-Methylbenzylidene p-butylaniline (CAS 38549-81-4), molecular formula C18H21N and molecular weight 251.37 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, p-Methylbenzylidene p-butylaniline (C18H21N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 251.37 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures p-Methylbenzylidene p-butylaniline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H21N |
| Molecular Weight | 251.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 1 |
Related p Standards
- 4-Methylbenzylidene Camphor (CAS 36861-47-9)
- 2-(3-Methylbenzylidene)-1H-indene-1,3(2H)-dione (CAS 15890-19-4)
- 3-(4-Methylbenzylidene)-5-phenylfuran-2(3H)-one (CAS 51460-18-5)
- N-(4-Methylbenzylidene)-4-nitroaniline (CAS 20192-50-1)
- (Z)-4-(2-methylbenzylidene)-2-phenyloxazol-5(4h)-one (CAS 53949-13-6)
- (Z)-4-(4-methylbenzylidene)-2-phenyloxazol-5(4h)-one (CAS 57427-79-9)
- 4-(4-Methylbenzylidene)-2-phenyloxazol-5(4H)-one (CAS 82309-33-9)
- 2-((4-Methylbenzylidene)amino)-1-phenylethan-1-ol (CAS 322413-04-7)
Recommended Standards
- N-Cyclohexyl-N-phenylaniline (CAS 4705-13-9)
- 887041-93-2 5-[(3-Phenylpropyl)sulfanyl]-1,3,4-thiadiazol-2-amine MFCD07024722 (CAS 887041-93-2)
- N-Cyclohexylhexahydropyrrolo[1,2-a]pyrazine-2(1H)-carboxamide (CAS 606133-05-5)
- Avibactam Impurity 85 (CAS 2733516-71-5)
- Benzene-1,2,4,5-tetracarboxamide (CAS 6183-35-3)
- N-(2,4-dimethylphenyl)benzamide (CAS 6328-77-4)
- 1-(2-Bromo-4-fluorobenzyl)-1h-pyrazol-4-amine (CAS 1152940-27-6)
- Ilaprazole Impurity 102 (CAS CATO-C4X-1130102)
- Ethyl 3-(4-Hydroxyphenyl)propanoate (CAS 23795-02-0)
- (3-Phenyl-1,2,4-oxadiazol-5-yl)methanamine hydrochloride (CAS 1216872-37-5)
- 4-Isopropyl-1-(2-methylphenyl)-1,6-dihydro-7H-pyrazolo[3,4-d]pyridazin-7-one (CAS 1105197-18-9)
- 2-Chloro-6-((3,4-dimethylphenyl)thio)-1H-purine (CAS 646510-61-4)
- Methyl Dehydroabietate (CAS 1235-74-1)
- Semaglutide Impurity 18 (CAS 1671100-14-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com