Empirical Formula of Ergocristinine methanesulfonate (CAS NO.74137-64-7): C₃₆H₄₃N₅O₈S
Molecular Weight: 705.8203 
Flash Point: 505.8 °C
Enthalpy of Vaporization: 139.04 kJ/mol
Boiling Point: 912.8 °C at 760 mmHg
Structure of Ergocristinine methanesulfonate (CAS NO.74137-64-7):
                          
Canonical SMILES: CC(C)C1(C(=O)N2C(C(=O)N3CCCC3C2(O1)O)CC4=CC=CC=C4)NC(=O)C5CN(C6CC7=CNC8=CC=CC(=C78)C6=C5)C.CS(=O)(=O)O
Isomeric SMILES: CC(C)[C@@]1(C(=O)N2[C@@H](C(=O)N3CCC[C@H]3[C@@]2(O1)O)CC4=CC=CC=C4)NC(=O)[C@H]5CN([C@H]6CC7=CNC8=CC=CC(=C78)C6=C5)C.CS(=O)(=O)O
InChI: InChI=1S/C35H39N5O5.CH4O3S/c1-20(2)34(37-31(41)23-16-25-24-11-7-12-26-30(24)22(18-36-26)17-27(25)38(3)19-23)33(43)40-28(15-21-9-5-4-6-10-21)32(42)39-14-8-13-29(39)35(40,44)45-34;1-5(2,3)4/h4-7,9-12,16,18,20,23,27-29,36,44H,8,13-15,17,19H2,1-3H3,(H,37,41);1H3,(H,2,3,4)/t23-,27+,28-,29+,34-,35+;/m1./s1
InChIKey: WECZKEGDCUZFPL-VZGXJIAFSA-N

Moderately toxic by intraperitoneal route. When heated to decomposition Ergocristinine methanesulfonate (CAS NO.74137-64-7) emits toxic vapors of NO_x and SO_x.

 Ergocristinine methanesulfonate , its cas register number is 74137-64-7. It also can be called Ergotaman-3',6',18-trione, 12'-hydroxy-2'-(1-methylethyl)-5'-(phenylmethyl)-, (5'-alpha,8-alpha)-, monomethanesulfonate (salt) .