Passa al contenuto
Merck

Comparative evaluation of determination of beta-lactam intermediates.

Hindustan antibiotics bulletin (1993-08-01)
B S Deshpande, S S Ambedkar, J G Shewale
ABSTRACT

The Schiff's base formation between 6-aminopenicillanic acid, 7-aminodesacetoxycephalosporanic acid and 7-aminocephalosporanic acid and p-dimethylaminobenzaldehyde (PDAB) was investigated. The factors that affect the reaction such as concentration of PDAB, time and pH were studied and optimised for estimation of these intermediates.

MATERIALI
N° Catalogo
Marchio
Descrizione del prodotto

Sigma-Aldrich
4-(Dimethylamino)benzaldehyde, 98%
Sigma-Aldrich
4-(Dimethylamino)benzaldehyde, suitable for histochemical demonstration of nitro blue tetrazolium reduction in neutrophils
Sigma-Aldrich
4-(Dimethylamino)benzaldehyde, ACS reagent, 99%
Millipore
Kovac′s reagent for indoles, suitable for microbiology
Millipore
Kovac′s reagent for indoles, suitable for microbiology
Sigma-Aldrich
4-(Dimethylamino)benzaldehyde, puriss. p.a., reag. Ph. Eur., ≥99% (perchloric acid titration)
Supelco
4-(Dimethylamino)benzaldehyde solution, 10 g/L in isopropanol, for TLC derivatization