11-chloro-21-hydroxy-12,15,20-trimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.1~10,14~.0~3,5~]hexacosa-10(26),11,13,16,18-pentaen-6-yl 2-[methyl(2-methylpropanoyl)amino]propanoate (non-preferred name) (88198-82-7)

Identification
Name:	11-chloro-21-hydroxy-12,15,20-trimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.1~10,14~.0~3,5~]hexacosa-10(26),11,13,16,18-pentaen-6-yl 2-[methyl(2-methylpropanoyl)amino]propanoate (non-preferred name)
Synonyms:	88198-82-7;Maytansine, N2'-deacetyl-15-methoxy-N2'-(2-methyl-1-oxopropyl)-, (10S)-
CAS:	88198-82-7
Molecular Formula:	C₃₇H₅₂ClN₃O₁₁
Molecular Weight:	750.2753
InChI:	InChI=1/C37H52ClN3O11/c1-19(2)33(43)40(7)22(5)34(44)51-28-17-29(42)41(8)24-15-23(16-25(47-9)30(24)38)31(49-11)20(3)13-12-14-27(48-10)37(46)18-26(50-35(45)39-37)21(4)32-36(28,6)52-32/h12-16,19,21-22,26-28,31-32,46H,17-18H2,1-11H3,(H,39,45)/b14-12+,20-13-
Molecular Structure:
Properties
Flash Point:	505.2°C
Boiling Point:	911.8°C at 760 mmHg
Density:	1.29g/cm³
Refractive index:	1.578
Flash Point:	505.2°C
Safety Data