Photoresist Chemicals L-Threonine, L-threonyl-L-tryptophyl-L-tryptophylglycyl-L-prolyl-L-histidyl-L-arginyl-L-valyl- L-glutaminyl-L-methionyl-L-histidyl- Cas：679415-53-3 Molecular Formula：C70H98N22O16S