Internal Standard Back Catalog number: 96651 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended LA11457534CY Chloroparaffin C12 55.00% Cl, 10μg/mL in CY, 1ml Price on request 672968 Oxytetracycline hydrochloride, 250mg Price on request 94194 PAH Standard Price on request