Biological Standards, Other

Products

(6S)-5-FORMYLTETRAHYDROFOLIC ACID, CALCIUM SALT (GLUTAMIC ACID-13C5, 90%) CHEMICAL PURITY 97%

BILIRUBIN (CHEMICAL PURITY 97%) (D4, ~70-80%)

3-METHYL-1-BUTANOL (2,3,4-13C3, METHYL-13C, 99%)

DIGITOXIN (21,23,23-D3, 96%) CHEMICAL PURITY 95%

ETHANOLAMINE:HCL (1,1,2,2-D4, 98%)

INDOXYL SULFATE, POTASSIUM SALT (RING-D4, 98%)

METHYLMALONIC ACID (13C4, 99%)

METHYLMALONIC ACID, DISODIUM SALT UNLABELED 95%+ PURE

TRISODIUM 2-METHYLCITRATE, RACEMIC MIXTURE OF DIASTEREOMERS (UNLABELED) 90%+ CP

3-IODO-L-TYROSINE (13C6, 99%)

DL-VANILMANDELIC ACID, SODIUM SALT UNLABELED

VITAMIN B2 PHOSPHATE (RIBOFLAVIN PHOSPHATE) (13C4, 99%, 15N2, 98%) CHEM PURITY >90%