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Hefei fuya biotechnology co. LTD??? ?? ??? ?????.

?? ?:Hefei fuya biotechnology co. LTD
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??:China
URL: http://www.purerechem.com
? ?? ?:1915
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Mepivacaine impurity 1/(S)-(+)-Mepivacaine/Ripovacaine EP Impurity C/(S)-N-(2,6-dimethylphenyl)-1-methylpiperidine-2-carboxamide?????24358-84-7C15H22N2O
Pregabalin impurity 2/Pregabalin EP Impurity B/(R)-Pregabalin/(R)-3-(aminomethyl)-5-methylhexanoic acid???,3-(?????)-5-??-,(3R)-148553-51-9C8H17NO2
Metronidazole impurity 2/Metronidazole EP Impurity D/2-(5-nitro-1H-imidazol-1-yl)ethan-1-ol5-???-1H-????-1-???5006-68-8C5H7N3O3
Bupropion 3',5'-Dichloro Fumarate Salt5-?????????????1193779-50-8C17H21Cl2NO5
Metronidazole impurity 4/Metronidazole EP impurity F/2-(2-(2-methyl-5-nitro-1H-imidazol-1-yl)ethoxy)ethan-1-ol16156-94-8C8H13N3O4
Vonoprazan impurity 37/(5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl) methanol2169271-28-5C16H13FN2O3S
Timolol EP Impurity A Maleate Salt26839-77-0C17H28N4O7S
Pregabalin impurity 4/rac-Pregabalin EP Impurity A/Pregabalin Lactam Impurity/4-Isobutylpyrrolidin-2-one4-????-2-?????61312-87-6C8H15NO
Sildenafil Impurity 28/Sildenafil Di-Amide Impurity/4-(2-Ethoxybenzamido)-1-methyl-3-n-propylpyrazole-5-carboxamide139756-03-9C17H22N4O3
Sildenafil Impurity 7/De(methypiperazinyl) Sildenafil Dimer Impurity/5-[2-Ethoxy-5-[4-[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl]sulfonyl]phenyl]-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-oneDe(Methypiperazinyl)SildenafilDiMur???1346603-48-2C34H38N8O6S
Sildenafil Impurity 1/Sildenafil EP Impurity A/Isobutyl Sildenafil/5-[2-Ethoxy-5-[(4-methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-(2-methylpropyl)-7H-pyrazolo[4,3-d]pyrimidin-7-one1391053-95-4C23H32N6O4S
Diclofenac impurity 4/Diclofenac EP Impurity F/N-(4-chlorophenyl)-2-(2,6-dichlorophenyl)acetamide2,6-????-N-(4-?????)-???????560075-65-2C14H10Cl3NO
Dapoxetine impurity 15/(R)-Dapoxetine HCl/(αR)-N,N-Dimethyl-α-[2-(1-naphthalenyloxy)ethyl]-benzenemethanamine Hydrochloride156453-51-9C21H24ClNO
Bupivacaine impurity 13/ (R)-(+)-Bupivacaine/1-Butyl-N-(2,6-dimethylphenyl)-2-piperidinecarboxamide Monohydrochloride; 1-Butyl-N-(2,6-dimethylphenyl)-2-piperidinecarboxamide(R)-(+)-?????HCL27262-45-9C18H28N2O
Flibanserin impurity 8/1-(prop-1-en-2-yl)-3-(2-(4-(3-(trifluoromethyl)phenyl)piperazin-1-yl)ethyl)- 1H-benzo[d]imidazol-2(3H)-one1971858-36-2C23H25F3N4O
Ropivacaine impurity 6/Ropivacaine EP Impurity D HCl/N-2-Desmethyl Ropivacaine HCl/(S)-N-(2,6-dimethylphenyl)-1-ethylpiperidine-2-carboxamide hydrochloride112773-86-1C16H25ClN2O
Pantoprazole impurity 18/4-(difluoromethoxy)benzene-1,2-diamine172282-50-7C7H8F2N2O
Sorafenib impurity 14/Isopropyl (4-((2-(methylcarbamoyl)pyridin-4-yl)oxy)phenyl)carbamate2206827-14-5C17H19N3O4
Ropivacaine impurity 10/Ropivacaine EP Impurity G/(R)-Ropivacaine/(R)-N-(2,6-Dimethylphenyl)-1-propyl-2-piperidinecarboxamide????????G98717-16-9C17H26N2O
Diclofenac impurity 2/Diclofenac EP Impurity C/[2-[(2,6-Dichlorophenyl)amino]phenyl]methanol(2-(2,6-DICHLOROANILINO)??)???27204-57-5C13H11Cl2NO
Prilocaine impurity 5/Prilocaine EP Impurity D HCl/N-(3-Methylphenyl)-2-(propylamino)propanamide hydrochloride2-(??????)-878791-35-6C13H21ClN2O
Pantoprazole impurity 13/N-[(3,4-DiMethoxy-2-pyridinyl)Methyl] Pantoprazole Sulfide/5-(Difluoromethoxy)-1-[(3,4-dimethoxy-2-pyridinyl)methyl]-2-[[(3,4-dimethoxy-2-pyridinyl)methyl]thio]-1H-benzimidazole957470-58-5C24H24F2N4O5S
Nintedanib impurity 9/Nintedanib Carboxylic Acid/(Z)-3-(((4-(N-methyl-2-(4-methylpiperazin-1 -yl)acetamido)phenyl)amino)(phenyl) methylene)-2-oxoindoline-6-carboxylic acid???1202894783-71-2C30H31N5O4
Trelagliptin Impurity 13/(S)-2-((6-(3-Aminopiperidin-1-yl)-3-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)-4-fluorobenzonitrile2206135-35-3C18H20FN5O2
Vonoprazan impurity 35/2-(2-(2-fluorophenyl)-2-oxoethyl)malononitrile2-[2-(2-??????)-2-????]???????312307-38-3C11H7FN2O
Prilocaine impurity 2/Prilocaine EP Impurity C/2-(Ethylamino)-o-propionotoluidide42459-37-0C12H18N2O
Prilocaine impurity 1/Prilocaine EP Impurity A/2-Chloro-N-(2-methylphenyl)propanamide2-???-N-(2-????)??????19281-31-3C10H12ClNO
Benzydamine Impurity 1/(1-Benzyl-3-[3-(diethylamino)propoxy]-1H-indazole)1-??-3-(3-??????-????)-1H-???47448-66-8C21H27N3O
Lansoprazole impurity 12/(3-Methyl-4-(2,2,2-trifluoroethoxy)pyridin-2-yl)methyl Acetate2-??????1-3-??-4-112525-75-4C11H12F3NO3
Metronidazole impurity 1/Metronidazole EP Impurity C/2-(4-nitro-1H-imidazol-1-yl)ethan-1-ol??039447685006-69-9C5H7N3O3
Lansoprazole impurity 20/Lansoprazole Sulfide N-Oxide/Lansoprazole Pyridine N-Oxide/2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]thio]-1H-benzimidazole N-Oxide163119-30-0C16H14F3N3O2S
Ropivacaine impurity 11/Ropivacaine EP Impurity G HCl/(R)-Ropivacaine HCl/(R)-N-(2,6-Dimethylphenyl)-1-propyl-2-piperidinecarboxamide HydrochlorideROPIVACAINE?????B(50MG)((R)-(+)-1-PROPYLPIPERIDINE-2-CARBOXYLICACID(2,6-DIMETHYLPHENYL)-???????????????)112773-90-7C17H27ClN2O
Dapoxetine impurity 11/(S)-N-Didemethyl Dapoxetine HCl/(S)-α-[2-(1-Naphthalenyloxy)ethyl]benzenemethanamine Hydrochloride2095189-99-2C19H20ClNO
Ropivacaine impurity 48/Ropivacaine N-oxide/(2S)-N-(2,6-Dimethylphenyl)-1-oxido-1-propyl-2-piperidinecarboxamide1391053-59-0C17H26N2O2
Pantoprazole impurity 19/(R)-(+)-Pantoprazole/((R)-6-(difluoromethoxy)-2-[(3,4-dimethoxypyridin-2-yl)methylsulfinyl]-1H-benzo[d]imidazole)(+)-(R)-?????142706-18-1C16H15F2N3O4S
Salbutamol impurity 12/Salbutamol EP impurity N/Albuterol Dimer/2-[(1,1-Dimethylethyl)amino]-1-[3-[[5-[2-[(1,1dimethylethyl)amino]-1-hydroxyethyl]-2-hydroxyphenyl]methyl]-4-hydroxy-5-(hydroxymethyl)phenyl]ethanol149222-15-1C26H40N2O5
Pantoprazole impurity 3/Pantoprazole EP Impurity F/6-(difluoromethoxy)-2-(((3,4-dimethoxypyridin-2-yl)methyl)sulfinyl)-1-methyl-1H-benzo[d]imidazole?????EP???F721924-06-7C17H17F2N3O4S
Flibanserin impurity 6/1,2-bis(4-(3-(trifluoromethyl)phenyl)piperaz in-1-yl)ethane51299-16-2C24H28F6N4
Sorafenib impurity 12/N-methyl-4-phenoxypicolinamide2004659-85-0C13H12N2O2
Pantoprazole impurity 12/ 5-(Difluoromethoxy)-1,3-dihydro-2H-benzimidazol-2-one1806469-15-7C8H6F2N2O2
Trelagliptin Impurity 11/(R)-4-((1-(3-(2-cyano-5-fluorobenzyl)-1-methyl-2,6-dioxo- 1,2,3,6-tetrahydropyrimidin-4-yl)piperidin-3-yl)amino)-4- oxobutanoic acid2087874-92-6C22H24FN5O5
Sorafenib impurity 16/Ethyl (4-((2-(methylcarbamoyl)pyridin-4-yl)oxy)phenyl)carbamate2206827-12-3C16H17N3O4
Sildenafil Impurity 2/Sildenafil EP Impurity B/Sildenafil N-Oxide/1-methyl-4-[[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl]sulfonyl]piperazine 1-oxide????N-????1094598-75-0C22H30N6O5S
Pantoprazole impurity 20/(S)-(-)-Pantoprazole/6-(Difluoromethoxy)-2-[(S)-[(3,4-dimethoxy-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole142678-35-1C16H15F2N3O4S
Metronidazole impurity 5/Metronidazole EP impurity G/2-(2-methyl-5-nitro-1H-imidazol-1-yl)acetic acid1010-93-1C6H7N3O4
Ropivacaine impurity 1/ Ropivacaine EP Impurity A/(S)-(-)-Bupivacaine/Levobupivacaine/(2S)-1-Butyl-N-(2,6-dimethylphenyl)-2-piperidinecarboxamide1-??-N-(2,6-?????)-????-2-??????27262-47-1C18H28N2O
Pantoprazole impurity 17/4-(Difluoromethoxy)-2-nitroaniline97963-76-3C7H6F2N2O3
Dapoxetine impurity 12/rac N-Didemethyl Dapoxetine HCl/α-[2-(1-Naphthalenyloxy)ethyl]benzenemethanamine HydrochlorideracN-Dide??????119357-34-5C19H19NO
Dapoxetine impurity 9/3-(1-Naphthalenyloxy)propiophenone3-(1-???????)??????41198-42-9C19H16O2
Vonoprazan impurity 3/5-phenyl-1H-pyrrole-3-carbaldehyde5-??-1H-??-3-???????56448-22-7C11H9NO
Vonoprazan impurity 1/(5-(2-fluorophenyl)-1H-pyrrol-3-yl)methanol1H-??-3-???,5-(2-??????)-881674-58-4C11H10FNO
Sorafenib impurity 19/4-[4-(Formylamino)phenoxy]-N-methyl-2-pyridinecarboxamide2004659-84-9C14H13N3O3
Ropivacaine impurity 7/Ropivacaine EP Impurity E/ (S)-Ropivacaine N-Isopropyl/(S)-N-(2,6-dimethylphenyl)-1-isopropylpiperidine-2-carboxamide265120-58-9C17H26N2O
Metronidazole impurity 3/Metronidazole EP impurity E/2-(2-methyl-4-nitro-1H-imidazol-1-yl)ethan-1-ol2-(2-??-4-???-????-1-YL)-???705-19-1C6H9N3O3
Mepivacaine impurity 2/(S)-(+)-Mepivacaine HCl/Ripovacaine EP Impurity C HCl/(S)-N-(2,6-dimethylphenyl)-1-methylpiperidine-2-carboxamide hydrochloride(S)-(+)-?????????34333-71-6C15H23ClN2O
Dapoxetine impurity 14/N-Desmethyl Dapoxetine HCl157166-71-7C20H22ClNO
Prilocaine impurity 3/Prilocaine EP Impurity C HCl/2-(Ethylamino)-o-propionotoluidide Hydrochloride2-(?????)-o-?????????????35891-75-9C12H19ClN2O
Lansoprazole impurity 21/N-[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl Lansoprazole/1-[[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]-2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazoleN-[3-??-4-(2,2,2-?????????)-2-????]???????1083100-26-8C25H22F6N4O3S
Prilocaine impurity 8/Prilocaine EP Impurity F/N-phenyl-2-(propylamino)propanamide42459-45-0C12H18N2O
Regorafenib impurity 16/4-(4-Amino-3-(4-amino-3-fluorophenoxy)phenoxy)-N-methylpicolinamide2098799-12-1C19H17FN4O3
Prilocaine impurity 11/Prilocaine EP Impurity G HCl/N-(2-methylphenyl)-2-(propylamino)acetamide hydrochloride1049712-77-7C12H19ClN2O
Bupivacaine impurity 14/Bupivacaine N-Oxide/1-butyl-2-((2,6-dimethylphenyl)carbamoyl)piperidine 1-oxide1346597-81-6C18H28N2O2
Benzydamine Impurity A HCl2196185-65-4C19H25ClN2O2
Prilocaine impurity 6/Prilocaine EP Impurity E/2-Desmethyl 4-Methyl Prilocaine/(RS)-N-(4-methylphenyl)-2-(propylamino)propanamidePRILOCAINE?????B(50MG)((RS)-N-(4-METHYLPHENYL)-2-(PROPYLAMINO)PROPANA-MIDE)744961-76-0C13H20N2O
Pantoprazole impurity 5/Pantoprazole N-Oxide/2-(((5-(difluoromethoxy)-1H-benzo[d]imidazol-2-yl)sulfinyl) methyl)-3,4-dimethoxypyridine 1-oxide?????N-????953787-60-5C16H15F2N3O5S
Ropivacaine impurity 2/Ropivacaine EP Impurity B/N-Despropyl Ropivacaine/(S)-N-(2,6-dimethylphenyl)piperidine-2-carboxamide(2S)-N-(2,6-?????)-2-??????????)27262-40-4C14H20N2O
Pantoprazole impurity 4/Pantoprazole Sulfide N-Oxide/2-(((5-(difluoromethoxy)-1H-benzo[d]imidazol-2-yl)thio)methyl)- 3,4-dimethoxypyridine 1-oxide953787-51-4C16H15F2N3O4S
Lansoprazole impurity 17/Lansoprazole R-Isomer/(R)-Lansoprazole/Dexlansoprazole/2-[(R)-[[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole???????138530-94-6C16H14F3N3O2S
Diclofenac impurity 5/Diclofenac Carboxylic Acid/2-((2,6-dichlorophenyl)amino)benzoic acid2-[(2,6-??????)???]???13625-57-5C13H9Cl2NO2
Prilocaine impurity 10/Prilocaine EP Impurity G/N-(2-methylphenyl)-2-(propylamino)acetamideN-(2-????)-2-(????)??????145133-92-2C12H18N2O
Diclofenac impurity 1/Diclofenac EP Impurity B/2-[(2,6-Dichlorophenyl)amino]benzaldehyde2-(2,6-????????)??????22121-58-0C13H9Cl2NO
Dapoxetine impurity 8/3,4-Dihydro-4-phenyl-2H-benzo[h]chromene???????94305-25-6C19H16O
1-[4-[4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl]-2-propen-1-one/Ibrutinib impurity936563-92-7C25H24N6O2
Vonoprazan impurity 28/2-chloro-5-(2-fluorophenyl)-1H-pyrrole-3-carbonitrile1240948-72-4C11H6ClFN2
Pantoprazole impurity 1/Pantoprazole EP Impurity A/Pantoprazole Sulphone/6-(difluoromethoxy)-2-(((3,4-dimethoxypyridin-2-yl)methyl)sulfonyl)-1H-benzo[d]imidazole???????????127780-16-9C16H15F2N3O5S
Trelagliptin Impurity 5/(R)-2-((6-(3-((3-(2-Cyano-5-fluorobenzyl)-1-methyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)amino)piperidin-1-yl)-3-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)-4-fluorobenzonitrile1917324-13-0C31H28F2N8O4
Sorafenib impurity 21/N-Desmethyl Sorafenib/4-(4-(3-(4-chloro-3-(trifluoromethyl)phenyl)ureido)phenoxy)picolinamide?????????12284461-74-1C20H14ClF3N4O3
Sorafenib impurity 3/4,4-(((carbonylbis(azanediyl))bis(4,1-phenylene))bis(oxy))bis(N-methylpicolinamide)284670-98-0C27H24N6O5
Pregabalin impurity 1/Pregabalin EP Impurity A/(4S)-4-(2-Methylpropyl)pyrrolidin-2-one181289-23-6C8H15NO
Prilocaine impurity 4/Prilocaine EP Impurity D/N-(3-Methylphenyl)-2-(propylamino)propanamide875252-65-6C13H20N2O
Flibanserin impurity 3/4-methyl-1H-benzo[b][1,4]diazepin-2(3H)-one60568-46-9C10H10N2O
Sorafenib impurity 24/N-Methyl-4-[4-[[2-[(methylamino)carbonyl]-4-pyridinyl]amino]phenoxy]-2-pyridinecarboxamide2004659-83-8C20H19N5O3
1-(Dimethylamino)-3-(2-(3-methoxyphenethyl)phenoxy)propan-2-ol135963-42-7C20H27NO3
Flibanserin impurity 2/1-(2-Methyl-1H-benzo[d]imidazol-1-yl)ethanone14678-81-0C10H10N2O
Lansoprazole impurity 15/Des(trifluoroethyl) Lansoprazole Sulfide/2-[(1H-Benzimidazol-2-ylthio)methyl]-3-methyl-4-pyridinolDes(trifluoroethyl)Lansoprazole???131926-97-1C14H13N3OS
Vonoprazan impurity 32/5-(2-fluorophenyl)-1H-pyrrole-3-carbonitrile5-(2-??????)-1H-??-3-??????1240948-77-9C11H7FN2
Sildenafil Impurity 4/Sildenafil EP Impurity D/ Demethylpiperazinyl Sildenafil Sulfonic Acid/4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonic acid????EP???D1357931-55-5C17H20N4O5S
Sorafenib impurity 17/1-(4-chloro-3-(trifluoromethyl)phenyl)-3-(4-hydroxyphenyl)urea1129683-83-5C14H10ClF3N2O2
Diclofenac impurity 3/Diclofenac EP Impurity D/2-[2-[(2-Bromo-6-chlorophenyl) amino]phenyl] acetic acid127792-23-8C14H11BrClNO2
Ropivacaine impurity 5/Ropivacaine EP Impurity D/N-2-Desmethyl Ropivacaine/(S)-N-(2,6-dimethylphenyl)-1-ethylpiperidine-2-carboxamide?????-ET-S98626-59-6C16H24N2O
Prilocaine impurity 7/Prilocaine EP Impurity E HCl/(RS)-N-(4-methylphenyl)-2-(propylamino)propanamide hydrochloride35891-99-7C13H21ClN2O
Bimatoprost Lactol/(3aR,4R,5R,6aS)-4-((S,E)-3-Hydroxy-5-phenylpent-1-enyl)hexahydro-2H-cyclopenta[b]furan-2,5-diol???59929856240-62-5C18H24O4
Cyclobenzaprine impurity 1/Cyclobenzaprine USP Related Compound A/Cyclobenzaprine 5-Hydroxy Impurity/(5-[3-(dimethylamino)propyl]-5H-dibenzo[a,d]-cyclohepten-5-ol)5-[3-(??????)???]-5H-???[a,d]?????-5-?18029-54-4C20H23NO
Paroxetine impurity 3/Sesamol Acetate/benzo[d][1,3]dioxol-5-yl acetate??-1,3-???-5-??????326-58-9C9H8O4
Dapoxetine impurity 1/3-(1-Naphthalenyloxy)-1-phenyl-1-propanol3-(1-???????)-1-??-1-????908291-72-5C19H18O2
Pantoprazole impurity 9/N-[(3,4-Dimethoxy-2-pyridinyl)methyl] Pantoprazole/5-(Difluoromethoxy)-1-[(3,4-dimethoxy-2-pyridinyl)methyl]-2-[[(3,4-dimethoxy-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole957470-59-6C24H24F2N4O6S
2-[(PhenylMethyl)aMino]benzoic Acid 3-(DiMethylaMino)propyl Ester2-[(????)???]???3-(??????)???????87453-76-7C19H24N2O2
Sitagliptin Defuoro Impurity 4?????????IMpurity4486459-98-7C15H19F2NO4
Pantoprazole impurity 16/N-[4-(difluoromethoxy)-2-nitrophenyl]acetamideN-[4-(????????)-2-?????]??????97963-75-2C9H8F2N2O4
Prilocaine impurity 9/Prilocaine EP Impurity F HCl/N-phenyl-2-(propylamino)propanamide hydrochloride13327-14-5C12H19ClN2O
Mirabegron impurity 12/ortho-Mirabegron/2-Amino-N-[2-[2-[[(2R)-2-hydroxy-2-phenylethyl]amino]ethyl]phenyl]-4-thiazoleacetamide1684452-80-9C21H24N4O2S
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