3-Cyanopyridine

Nantong acetic acid Chemical Co., Ltd.
4-Cyanopyridine

Nantong acetic acid Chemical Co., Ltd.
N-acetyl-L-Cysteine(NaC)

Ningbo Create-Bio Engineering Co.,Ltd
N-acetyl-L-Glutamine

Ningbo Create-Bio Engineering Co.,Ltd
L-arginine

Ningbo Create-Bio Engineering Co.,Ltd
Indole-2-carboxylic acid

Ningbo Wusheng Chemical Co., Ltd.
Indole-2-carboxylic acid Ethyl Ester

Ningbo Wusheng Chemical Co., Ltd.
3-Bromoindoline-2-carboxylic acid Ethyl Ester

Ningbo Wusheng Chemical Co., Ltd.
indoline-2-carboxylic acid

Ningbo Wusheng Chemical Co., Ltd.
indoline-2-carboxylic acid

Ningbo Wusheng Chemical Co., Ltd.
Octahydro-1H-indoline-2-carboxylic acid

Ningbo Wusheng Chemical Co., Ltd.
N-((S)-Ethoxycarbonyl-1-butyl)-(S)-alanine

Ningbo Wusheng Chemical Co., Ltd.
N-acetyl-DL-cyclohexylglycine

Ningbo Wusheng Chemical Co., Ltd.
Tetrahydrophthalic anhydride

Puyang Huicheng Electronic Material Co., Ltd.
Hexahydrophthalic anhydride

Puyang Huicheng Electronic Material Co., Ltd.
Methyltrahydrophthalic anhydride

Puyang Huicheng Electronic Material Co., Ltd.
Methylhexahydrophthalic anhydride

Puyang Huicheng Electronic Material Co., Ltd.
Nadic anhydride

Puyang Huicheng Electronic Material Co., Ltd.
Methyl nadic anhydride

Puyang Huicheng Electronic Material Co., Ltd.
Other anhydrides

Puyang Huicheng Electronic Material Co., Ltd.