Internal Standard Back Catalog number: 95665 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended CA16057900 1,3-Phenylenediamine, certified, 0.1g Price on request 9304.15-100-AN 7-Aminoclonazepam-d4, 100µg/mL in Acetonitrile, 1mL Price on request 10835.46-K-ME Quetiapine hemifumarate, 1000µg/ml in MeOH, 1ml Price on request