:Dipyrandium

{{Chembox

| ImageFile = Dipyrandium.svg

| ImageSize = 250px

| ImageAlt =

| SystematicName = 1,1'-Androstan-3β,17β-diylbis(1-methylpyrrolidinium)

| OtherNames =

|Section1={{Chembox Identifiers

| CASNo1 = 33235-64-2

| CASNo1_Ref = {{cascite|correct|CAS}}

| UNII1_Ref = {{fdacite|correct|FDA}}

| UNII1 = XMR4CN9YAU

| PubChem1 = 160227

| index1_label = (iodide salt)

| InChI1=1S/C29H52N2.2HI/c1-28-15-13-23(30(3)17-5-6-18-30)21-22(28)9-10-24-25-11-12-27(31(4)19-7-8-20-31)29(25,2)16-14-26(24)28;;/h22-27H,5-21H2,1-4H3;2*1H/q+2;;/p-2/t22-,23-,24-,25-,26-,27-,28-,29-;;/m0../s1

| InChIKey1 = MFQJSNKMXLSFCD-UADHMQRGSA-L

| SMILES1 = C[C@]12CC[C@@H](C[C@@H]1CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@@H]4[N+]5(CCCC5)C)C)[N+]6(CCCC6)C.[I-].[I-]

| SMILES = C[C@]12CC[C@@H](C[C@@H]1CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@@H]4[N+]5(CCCC5)C)C)[N+]6(CCCC6)C

}}

|Section2={{Chembox Properties

| C=29 | H=52 | N=2

| Appearance =

| Density =

| MeltingPt =

| BoilingPt =

| Solubility = }}

|Section3={{Chembox Hazards

| MainHazards =

| FlashPt =

| AutoignitionPt = }}

}}

Dipyrandium is an aminosteroid neuromuscular blocking agent.{{cite journal|pmid=4243172|year=1969|last1=Lees|first1=P|last2=Tavernor|first2=WD|title=An investigation of the actions of the neuromuscular blocking agent, dipyrandium iodide, on cardiovascular and respiratory function in the horse|volume=10|issue=5|pages=428–34|journal=Research in Veterinary Science|doi=10.1016/S0034-5288(18)34408-4}}