Yttrium (Y) Back Catalog number: 56139 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10974.6-100MG Para-phenylenediamine,neat,neat,100mg, Price on request 8483.19-500MG Metoprolol tartrate, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 56392-17-7 Price on request 9848.3-1G Oxomalonic acid, Calcium salt, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 21085-60-9 Price on request