Succinic acid's cas code is 110-15-6.
Butyl benzoate's cas code is 136-60-7.
Diethyl malonate's cas code is 105-53-3.
Diethyl succinate's cas code is 123-25-1.
Ethyl acetoacetate's cas code is 141-97-9.
2-Methyl-3-furanthiol's cas code is 28588-74-1.