Arunrefsyn

refsyn biosciences pvt ltd impurity manufacturer crms 14(r)-14-hydroxy clarithromycin impurity supplier pondicherry api impurities api metabolites pharmaceutical impurities certified api reference standards manufacturer drug metabolites synthesizer certified reference standards drug impurities synthesizer pharmaceutical companies biotech companies bio-pharmaceutical companies research organizations clinical research organizations academic universities custom synthesis contract research organization 329218-14-6 (2hcl) quetiapine impurity n 1800291-8 153139-56-1 free base oxybutynin oxybutynin rela 89268-62-2 famotidine impurity e 129083-44-9 famot 122028-36-8 (hcl salt) diphenhydramine diphenhyd chlorpromazine impurity b 19077-20-4 carbamazapine 526204-10-4 (hcl ) ciprofloxacin rc a 526204-10-4 528851-31-2 (hcl) ciprofloxacin impurity d 133210- 83881-53-2 (free base) clotrimazole clotrimazole cetirizine impurity f 83881-54-3 (hcl 83881-56-5 (hcl) 479065-02-6 (hbr salt) citalopram r-isomer oxalate 98902-36-4 (base) allopurinol allopurinol impuri 113994-41-5 amlodipine impurity c 721958-74-3 aml 1008531-60-9 acetazolamide acetazolamide impurit 4’ dimer 1797986-18-5 aripiprazole impurity c na a n'-dioxide 573691-13-1 aripiprazole impurity a (rc 433289-84-0 (acid) aspirin aspirin impurity e 55 693794-20-6 (fb) desfluoro atorvastatin 433289-83 15307-79-6 aceclofenac impurity b 15307-78-5 acecl compound name cas no aceclofenac aceclofenac imp