Atracurium besylate/ CAS 64228-81-5 BP2003 are what we could supply.

Meanwhile the intermediates which we could supply are as follows:

Tetrahydropapaverine hydrochloride/ CAS 6429-04-5

R-CONDENSATE OXALIC ACID / CAS 96687-52-4

R-Tetrahydropapaverie-N-Acetyl-L-Leucinate / CAS 141109-12-8

R-TATRAHYDROPAPAVERINE HCL/ CAS 54417-53-7

Dihydropapaverine Hydrochloride / CAS 6957-27-3

If there is any inquiry, inform me for free.

Ms. Kelly Gu