Photoresist Chemicals b-Alanine, L-arginyl-6-aminohexanoyl-6-aminohexanoyl-L-arginyl-6-aminohexanoyl- 6-aminohexanoyl-L-arginyl-6-aminohexanoyl-6-aminohexanoyl- Cas：911211-55-7 Molecular Formula：C57H109N19O11