Caffeine, 100µg/ml in MeOH, 1ml Back Catalog number: 97536 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 1346.10 cis-4-(2-Hydroxyphenyl)-2-oxobut-3-enoic acid, Please inquire, Solvent-, Unit , # of units-, Cas.no. 31966-72-0 Price on request 4PM159 2,3,3',4,5,5'-Hexachloro-4'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane Price on request 10753.23-10MG 5F-APINACA N-(4-hydroxypentyl) metabolite Price on request