Erectile dysfunction


Erectile dysfunction reference standards

Clearsynth offers high-purity Erectile dysfunction reference standards for research and analytical purposes.

All products are shipped with complete documentation (including CoA and MSDS) and accredited to ISO 45001:2018, ISO 9001:2015, ISO 14001:2015, ISO 17034:2016, ISO/IEC 17025:2017 along with US FDA registration & DSIR recognition.



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CAT No. COMPOUND CATEGORY
CS-T-46880 Acetaminotadalafil API Standards
CS-T-46988 Acetildenafil API Standards
CS-T-46989 Acetildenafil D8 Stable Isotopes
CS-T-48087 Amino Tadalafil Impurities
CS-O-05671 Avanafil API Standards
CS-O-15725 Avanafil 13C5 15N Stable Isotopes
CS-O-10051 Avanafil 13C5 15N D2 Stable Isotopes
CS-B-00233 Avanafil D4 Stable Isotopes
CS-P-07147 Avanafil Impurity 13 Impurities
CS-P-07148 Avanafil Impurity 17 Impurities
CS-O-11892 Avanafil Metabolite M16 Metabolites
CS-O-10992 Avanafil Metabolite M4 Metabolites
CS-P-00354 Benzyl Sildenafil Impurities
CS-T-51868 De(methypiperazinyl) Sildenafil Dimer Impurity Impurities
CS-T-15198 Demethylpiperazinyl 7-Desoxo 7-Thioxosildenafil Sulfonic Acid Impurities
CS-T-15207 Demethylpiperazinyl Desethyl Sildenafil Sulfonyl Chloride Impurities
CS-T-15923 Descarbonsildenafil Impurities
CS-P-07008 Desethyl Carbodenafil Impurities
CS-O-10905 Desethyl Sildenafil Metabolites
CS-T-52145 Desethyl Sildenafil D3 Stable Isotopes
CS-T-88367 Desmethyl Fondenafil Impurities
CS-P-04792 Homo sildenafil-d5 (ethyl-d5) Stable Isotopes
CS-T-26513 Hydroxy Acetildenafil Impurities
CS-T-26679 Hydroxy Chlorodenafil Impurities
CS-O-10340 Hydroxy Vardenafil Metabolites
CS-T-28816 Hydroxythio Acetildenafil Impurities
CS-T-57285 Lodenafil Carbonate API Standards
CS-T-51907 N-Desethyl Acetildenafil Intermediates
CS-O-10341 N-Desethyl Vardenafil Metabolites
CS-O-05840 N-Desmethyl sildenafil Metabolites
CS-O-06962 N-desmethyl Sildenafil D8 Stable Isotopes
CS-O-08230 N-Desmethyl Tadalafil Impurities
CS-T-59875 N-Octyl Nortadalafil Intermediates
CS-T-59689 Nor Acetildenafil Intermediates
CS-T-59690 Nor Acetildenafil D8 Stable Isotopes
CS-T-37594 Norneo Vardenafil Impurities
CS-T-40080 Piperazonifil API Standards
CS-T-40099 Piperiacetildenafil API Standards
CS-P-00252 Propoxyphenyl Sildenafil Impurities
CS-T-40729 Propoxyphenyl Thioaildenafil Impurities
CS-T-40727 Propoxyphenyl Thiosildenafil Impurities
CS-T-40726 Propoxyphenyl-thiohydroxyhomosildenafil Impurities
CS-T-40928 Pseudo Vardenafil Impurities
CS-T-88835 S-Desethylpiperidino S-(Glycin-N-yl) Vardenafil Impurities
CS-T-88320 S-Desethylpiperidino S-[2-Carboxyl-2-oxo-ethyl-(2-aminoethyl)amino] Vardenafil Impurities
CS-O-31711 Sildenafil API Standards
CS-O-08159 Sildenafil Chlorosulfone Impurities
CS-O-30760 Sildenafil citrate API Standards
CS-O-14093 Sildenafil Citrate Impurity 2 Impurities
CS-O-14094 Sildenafil Citrate Impurity 3 Impurities
CS-O-08158 Sildenafil Citrate Impurity-1 Impurities
CS-O-06964 Sildenafil D3 Stable Isotopes
CS-O-06963 Sildenafil D8 Stable Isotopes
CS-DG-00019 Sildenafil Dimer Impurity Impurities
CS-O-14710 Sildenafil EP Impurity D Impurities
CS-O-08160 Sildenafil Impurity A Impurities
CS-EG-00647 Sildenafil impurity A (Y0001579) EP Standards
CS-P-00253 Sildenafil Related Compound Impurities
CS-O-01446 Sildenafil-N-Oxide Impurities
CS-O-02425 Tadalafil API Standards
CS-BU-00076 Tadalafil 13C2D3 Stable Isotopes
CS-O-15332 Tadalafil 13CD3 Stable Isotopes
CS-O-02787 Tadalafil D3 Stable Isotopes
CS-O-08226 Tadalafil Desmethylene Impurity Impurities
CS-O-08227 Tadalafil EP Impurity A Impurities
CS-O-08228 Tadalafil EP Impurity B Impurities
CS-O-08229 Tadalafil EP Impurity C Impurities
CS-P-08134 Tadalafil EP Impurity D Impurities
CS-AQ-00154 Tadalafil EP Impurity I Impurities
CS-T-35159 Tadalafil Impurity 1 Impurities
CS-P-06952 Tadalafil Impurity 10 Impurities
CS-P-02138 Tadalafil Impurity 6 Impurities
CS-T-48664 Tadalafil Impurity 7 Impurities
CS-AQ-00151 Tadalafil impurity E Impurities
CS-AQ-00152 Tadalafil impurity F Impurities
CS-AQ-00153 Tadalafil impurity G Impurities
CS-O-08164 Thiodimethyl sildenafil Metabolites
CS-T-44185 Thiohomo Sildenafil Impurities
CS-T-46099 Udenafil API Standards
CS-P-01737 Udenafil Impurity 2 Impurities
CS-P-01738 Udenafil Impurity 3 Impurities
CS-P-01189 Udenafil-D7 Stable Isotopes
CS-O-30815 Vardenafil API Standards
CS-T-46326 Vardenafil Acetyl Analogue Impurities
CS-T-62702 Vardenafil Acetyl-d5 Analogue Stable Isotopes
CS-O-07053 Vardenafil D5 Hydrochloride Stable Isotopes
CS-T-46324 Vardenafil Dihydrochloride Salt API Standards
CS-P-00296 Vardenafil Dimer Impurities
CS-O-11329 Vardenafil Hydrochloride Trihydrate API Standards
CS-P-06761 Vardenafil Hydroxy Impurity Impurities
CS-T-93343 Vardenafil N-Oxide Impurities
CS-T-46328 Vardenafil Oxopiperazine (Impurity) Impurities
CS-O-10240 Vardenafil-d4 Stable Isotopes
CS-P-02373 Yonkenafil API Standards
CS-P-02368 Yonkenafil-d8 Stable Isotopes
CS-O-32414 "5-Pyrimidinecarboxylic acid,4-[[(3-chloro-4-methoxyphenyl) methyl]amino]-2-(methylthio)ethyl este" Impurities
CS-T-15567 "Des-N-Ethyl 3,5-Dimethylacetildenafil" Impurities
CS-O-20035 (1R,3R)-9H-pyrido[3,4-B]indole-3-carboxylic acid, 1,2,3,4-tetrahydro-1-(3,4-methylenedioxyphenyl), methyl ester, hydrochloride Intermediates
CS-T-35160 (1S,3R)-Methyl-1,2,3,4-tetrahydro-1-(3,4-methylenedioxyphenyl)-9H-pyrido[3,4-b]indole-3-carboxylate Impurities
CS-T-48663 (1S,3S)-1-(1,3-Benzodioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic Acid Methyl Ester Impurities
CS-T-34288 1-Methyl-4-nitro-3-propyl-1H-pyrazole-5-carboxylic Acid Intermediates
CS-T-34289 1-Methyl-4-nitro-3-propylpyrazole-5-carboxamide Impurities
CS-O-10916 2-(2-Ethoxyphenyl)-5-methyl-7-propyl-3H-imidazo[5,1-f][1,2,4]triazin-4-one Intermediates
CS-O-08156 2-Ethoxybenzoyl chloride Impurities
CS-P-00103 2-Ethoxy-N-Hydroxy Benzamidine Impurities
CS-T-56421 2-Hydroxypropyl Nortadalafil Impurities
CS-O-05922 2'-Oxo Tadalafil Metabolites
CS-O-32415 2-Pyrimidinemethanamine hydrochloride Intermediates
CS-T-53103 3-(6,7-Dihydro-1-methyl-3-propyl-7-thioxo-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-benzenesulfonyl Chloride Impurities
CS-T-03054 4-Amino-1-methyl-3-propyl-1H-pyrazole-5-carboxamide Hydrochloride Impurities
CS-T-22386 4-Ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydro-imidazo[5,1-f][1,2,4]-triazin-2-yl)benzene-sulfonyl Intermediates
CS-T-22410 5-(2-Ethoxyphenyl)-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidine-7-thione Impurities
CS-T-54350 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one Intermediates
CS-O-11161 5-tert-Butyl N-Carbobenzoxy-L-glutamate Building Blocks
CS-T-88237 7-Despropyl 7-Phenyl Vardenafil Impurities