| 501-94-0 | 4-Hydroxyphenethyl alcohol | Zibo Yurui Biotechnology Co., Ltd |
| 571-44-8 | 4-Androsten-3b-ol-17-one, | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 130047-19-7 | 4-FLUORO-2-(TRIFLUOROMETHYL)PHENOL 130047-19-7 | Hebei Dangtong Biological Technology Co..LTD |
| 222978-01-0 | (4-Bromo-3-fluorophenyl)methanol | COLORCOM LTD. |
| 1991-87-3 | 4-Methylphenyl-L-alanine | Hubei Jiutian Bio-medical Technology Co., Ltd |
| 1205548-00-0 | 4-DMA-7,8-DHF free base/4'-DiMethylaMino 7,8-Dihydroxyflavone HydrobroMide | CHINA MIGO INDUSTRIAL CO., LIMITED |
| 1034975-62-6 | 4-(4-methylpiperazin-1-yl)-2-[(tetrahydropyran-4-yl)(2,2,2-trifluoroacetyl)amino]benzoic acid trifluoroacetate’ | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 941685-27-4 | 4-(1H-PYRAZOL-4-YL)-7-((2-(TRIMETHYLSILYL)ETHOXY)METHYL)-7H-PYRROLO[2,3-D]PYRIMIDINE' | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 52237-19-1 | 4-amino-3-(4-fluorophenyl)butanoic acid | Hubei Vanz Pharm Co.,Ltd |
| 5337-93-9 | /4'-Methylpropiophenone | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 5337-93-9 | .4'-Methylpropiophenone | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 66107-29-7 | 4-METHOXYPHENYL TRIFLUOROMETHANESULFONATE | Hebei Dangtong Biological Technology Co..LTD |
| 1103738-29-9 | 4-Iodo-1-chloro-2-(4-ethoxybenzyl)benzene’ | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 183322-18-1 | 4-Chloro-6,7-bis(2-methoxyethoxy)quinazoline’ | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 3680-69-1 | 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine‘ | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 54483-30-6 | 4H-Oxireno[3,4]cyclopenta[1,2-b]furan-4-one, hexahydro-, [1aS-(1aα,2aα,5aα,5bα)]- (9CI) | Zibo Yurui Biotechnology Co., Ltd |
| 65025-95-8 | 4-(T-BUTYLDI-ME-SIO-ME)HEXA-H-5-(T-H-PYR AN -2-YLOXY)-CYCLOPENTA(B)FURAN-2-ON, 97 | Zibo Yurui Biotechnology Co., Ltd |
| 5337-93-9 | 4'---Methylpropiophenone | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 1003-10-7 | 4-BUTYROTHIOLACTONE CAS:1003-10-7 | Hebei Dangtong Biological Technology Co..LTD |
| 5337-93-9 | 4'-Methylpropiophenone | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 571-44-8 | 4-Androsten-3b-ol-17-one | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 1080-12-2 | 4-(4-HYDROXY-3-METHOXYPHENYL)-3-BUTEN-2-ONE | Zibo Yurui Biotechnology Co., Ltd |
| 1353224-53-9 | 4-(4-(cyclopentyloxy)quinolin-2-yl)benzene-1,2-diol | Zibo Yurui Biotechnology Co., Ltd |
| 158407-04-6 | 4-BROMOMETHYL-PIPERIDINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 168683-02-1 | 4-[[(1,1-DIMETHYLETHOXY)CARBONYL]AMINO]-2-CYCLOPENTENE-1-CARBOXYLIC ACID METHYL ESTER | Zibo Yurui Biotechnology Co., Ltd |
| 1200-07-3 | 4-Bromocinnamic acid | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 13803-74-2 | 4-Methyl-2-hexanamine hydrochloride | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 345-83-5 | 4-Fluorobenzophenone | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 85-27-8 | 4-(alpha-Methylbenzyl)resorcinol | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 6285-05-8 | 4'-Chloropropiophenone | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 213265-83-9 | 4,6-Dichloro-5-fluoropyrimidine | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 92-66-0 | 4-Bromobiphenyl | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 589-15-1 | 4-Bromobenzyl bromide | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 3753-18-2 | 4,4'-Bis(methoxymethyl)-1,1'-biphenyl | Jinan Qinmu fine chemical Co.,Ltd. |
| 1667-10-3 | 4,4'-Bis(chloromethyl)-1,1'-biphenyl | Jinan Qinmu fine chemical Co.,Ltd. |
| 1002344-97-9 | 4-Chloro-2-fluoro-3-Methoxybenzaldehyde | HUAJING INDUSTRIAL LIMITED |
| 288385-88-6 | 4-Fluoro-5-hydroxy-2-methylindole | Jinan Qinmu fine chemical Co.,Ltd. |
| 14091-15-7 | 4-BROMO-DL-PHENYLALANINE | Hubei Jiutian Bio-medical Technology Co., Ltd |
| 4053-08-1 | 4-Chloro-1,8-naphthalic anhydride CAS:4053-08-1 | Hebei Dangtong Biological Technology Co..LTD |
| 62561-74-4 | 4-Bromo-D-phenylalanine | Hubei Jiutian Bio-medical Technology Co., Ltd |
| 1193-21-1 | 4,6-Dichloropyrimidine CAS:1193-21-1 | Henan Sinotech Import&Export Corporation |
| 1193-21-1 | 4,6-dichloro pyrimidine CAS:1193-21-1 | Henan Sinotech Import&Export Corporation |
| 1193-24-4 | 4,6-Dihydroxypyrimidine CAS:1193-24-4 | Henan Sinotech Import&Export Corporation |
| 1193-24-4 | 4,6-Pyrimidinediol CAS:1193-24-4 | Henan Sinotech Import&Export Corporation |
| 331950-30-2 | 4-BROMO-N-CYCLOPROPYLBENZENESULPHONAMIDE | Hebei Dangtong Biological Technology Co..LTD |
| 5382-19-4 | 4-Chloropiperidine hydrochloride | COLORCOM LTD. |
| 24250-84-8 | 4-Bromo-L-phenylalanine | Hubei Jiutian Bio-medical Technology Co., Ltd |
| 42571-07-3 | 42571-07-3 | Hubei Vanz Pharm Co.,Ltd |
| 5117-12-4 | 4-Acryloylmorpholine CAS:5117-12-4 | Hebei Dangtong Biological Technology Co..LTD |
| 33965-47-8 | 4-Chloro-D-phenylalanine methyl ester hydrochloride | Hubei Jiutian Bio-medical Technology Co., Ltd |
| 147065-05-2 | 4-CHLORO-D-PHENYLALANINE HYDROCHLORIDE | Hubei Jiutian Bio-medical Technology Co., Ltd |
| 123053-23-6 | 4-CHLORO-L-PHENYLALANINE HCL | Hubei Jiutian Bio-medical Technology Co., Ltd |
| 61382-01-2 | 4,4'-Diamino-[1,1'-biphenyl]-3,3'-dicarbonitrile | Shanghai Bonimyd New Material Technology Co., Ltd |
| 1591-30-6 | 4,4′-Biphenyldicarbonitrile | Shanghai Bonimyd New Material Technology Co., Ltd |
| 1698293-93-4 | 4-methyl-2-(1-methylethyl)-3-pyridinamine | Zibo Yurui Biotechnology Co., Ltd |
| 861533-46-2 | 4-(4-carboxy-3-hydroxy-phenyl)-2-hydroxy-benzoic acid | Shanghai Bonimyd New Material Technology Co., Ltd |
| 150-76-5 | 4-Methoxyphenol | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 1137-42-4 | 4-Hydroxybenzophenone | Shenzhen Longhua District Chilianxin Technology Commercial Bank (Individual Industrial and Commercial Household) |
| 5959-56-8 | 4-Amino-1-naphthol hydrochloride | Hangzhou Huarong Pharm Co., Ltd. |
| 2834-90-4 | 4-amino-1-naphthol | Hangzhou Huarong Pharm Co., Ltd. |
| 54-62-6 | 4-Aminopteroyl-L-glutamic acid | Henan Sinotech Import&Export Corporation |
| 929693-31-2 | 4-(dimethylcarbamoyl)cyclohexyl methanesulfonate | Hangzhou Huarong Pharm Co., Ltd. |
| 758685-72-2 | 4,5,6,7-tetrahydro-5-Methyl-[5,4-c]pyridine-2-carboxylic Acid98% | Hangzhou Huarong Pharm Co., Ltd. |
| 137281-39-1 | 4-[2-(2-Amino-4,7-dihydro-4-oxo-1H-pymol[2,3-d]pyrimodin-5-yl)ethyl]benzoic acid, | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 179162-55-1 | 4-(5-(4-(pentyloxy)phenyl)isoxazol-3-yl)benzoic acid' | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 154127-42-1 | (4S)-1,1-dioxide-3,4-dihydro-4-hydroxy-2- CAS:154127-42-1 | Hebei Dangtong Biological Technology Co..LTD |
| 41252-97-5 | 4-Iodo-2-nitrotoluene 41252-97-5 | Hebei Dangtong Biological Technology Co..LTD |
| 122-88-3 | 4-Chlorophenoxyacetic acid---0019 | Qingdao Junniang Trading Co., Ltd. |
| 207511-18-0 | 4-Methoxypyridine 1-oxide xhydrate | Hangzhou Lingrui Chemical Co.,Ltd. |
| 70653-29-1 | [(4-methoxyphenyl)methyl] hydrogen [4-[(tetrahydro-2H-pyran-2-yl)oxy]phenyl]malonate | Hangzhou Lingrui Chemical Co.,Ltd. |
| 95418-58-9 | 4-tert-Butoxystyrene | ChangZhou Mascotchem. Co.,Ltd. |
| 18979-61-8 | 4-Butylresorcinol | Zibo Hangyu Biotechnology Development Co., Ltd |
| 122-00-9 | 4'-Methylacetophenone-CAS122-00-9 | CHINA MIGO INDUSTRIAL CO., LIMITED |
| 4271-30-1 | 4-Aminobenzoyl-L-glutamic acid | Henan Sinotech Import&Export Corporation |
| 136-77-6 | 4-Hexyl-1,3-benzenediol | Zibo Hangyu Biotechnology Development Co., Ltd |
| 37552-81-1 | 4-Chloro-6-trifluoromethylpyrimidine 37552-81-1 | Hebei Dangtong Biological Technology Co..LTD |
| 13062-76-5 | 4-[2-(Methylamino)ethyl]phenol hydrochloride | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 370-98-9 | 4-(2-METHYLAMINO-ETHYL)-PHENOL | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 56-12-2 | 4-Aminobutyric acid high purity | HUAJING INDUSTRIAL LIMITED |
| 144689-93-0 | 4-(1-Hydroxy-1-methylethyl)-2-propyl-1H-imidazole-5-carboxylic acid ethyl ester | Henan Sinotech Import&Export Corporation |
| 21803-75-8 | 4-Amino-3-chlorobenzonitrile | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 2486-71-7 | 4-Amino-3-chlorobenzoic acid | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 4123-72-2 | 4-Amino-3,5-dibromobenzoic acid | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 50397-74-5 | 4-Amino-3-bromobenzonitrile | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 56961-25-2 | 4-AMINO-3,5-DICHLOROBENZOIC ACID | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 6311-37-1 | 4-AMINO-3-BROMOBENZOIC ACID | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 78473-00-4 | 4-Amino-3,5-dichlorobenzonitrile | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 446-31-1 | 4-AMINO-2-FLUOROBENZOIC ACID | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 55-81-2 | 4-Methoxyphenethylamine | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 915087-25-1 | 4-AMINO-2-FLUORO-N-METHYLBENZAMIDE | Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd |
| 36847-10-6 | 4,6-DIBROMOPYRIMIDINE | COLORCOM LTD. |
| 60899-33-4 | 4-Iodo-1-Indanone | COLORCOM LTD. |
| 140645-53-0 | 4-BOC-2-AMINOMETHYLMORPHOLINE | COLORCOM LTD. |
| 1193-21-1 | 4,6-Dichloropyrimidine CAS:1193-21-1 | Henan Sinotech Import&Export Corporation |
| 1193-21-1 | 4,6-Dichloro pyrimidine | Henan Sinotech Import&Export Corporation |
| 114772-54-2 | 4'-Bromomethyl-2-cyanobiphenyl CAS:114772-54-2 | Henan Sinotech Import&Export Corporation |
| 114772-54-2 | 4-Bromomethyl-2-Biphenylcarbonitrile | Henan Sinotech Import&Export Corporation |
| 40899-37-4 | 4-BROMO-3-METHYLPYRIDIN | COLORCOM LTD. |
| 30129-53-4 | 4-Chloro-6-methyl-1H-pyrazolo[3,4-d] 30129-53-4 | Hebei Dangtong Biological Technology Co..LTD |