Photoresist Chemicals L-Cysteine, L-valyl-L-prolylglycyl-L-a-aspartyl-L-prolyl-L-a-glutamyl-L-alanyl-L-alanyl-L- a-glutamyl-L-alanyl-L-arginyl-L-arginylglycyl-L-glutaminyl- Cas:919099-53-9 Molecular Formula:C62H102N22O23S