avermectin B1

Hangzhou Sunwell Chemical Co., Ltd.
azathioprine

Hangzhou Sunwell Chemical Co., Ltd.
azelastine HCL

Hangzhou Sunwell Chemical Co., Ltd.
azteronam

Hangzhou Sunwell Chemical Co., Ltd.
4aa(4-acetoxyazetidin-2-one)

Hebei Worldstar Chemical Co., Ltd.
alkaline gentamicin C1a

Renhua Henan Biological Technology Co.,
Isopropyl 2-(3-nitrobenzylidene)acetoacetate

Henan Xuchang Haofeng Chemical Techology Co.,Ltd.
1-(Diphenylmethyl)azetidin-3-yl cyanoacetate

Henan Xuchang Haofeng Chemical Techology Co.,Ltd.
Isobutyryl acetate

Henan Yu Chen Pharmaceutical Co., Ltd
atorvastatin Intermediate a5

Henan Yu Chen Pharmaceutical Co., Ltd
atorvastatin Intermediate M4

Henan Yu Chen Pharmaceutical Co., Ltd
atorvastatin Intermediate a8

Henan Yu Chen Pharmaceutical Co., Ltd
3-Tbdmso- Glutaric anhydride

Henan Yu Chen Pharmaceutical Co., Ltd
Saliclylic acid

JQC (Huayin) Pharmaceutical Co., Ltd.
aspirin

JQC (Huayin) Pharmaceutical Co., Ltd.
Methoxyethyl - 2- (3-nitrobenzylidene) acetoacetate

Jinan Kehui Pharmaceutical Sci. & Rec. Co., Ltd.
acetoacetate methoxyethyl

Jinan Kehui Pharmaceutical Sci. & Rec. Co., Ltd.
acetoacetate chloroethyl

Jinan Kehui Pharmaceutical Sci. & Rec. Co., Ltd.