(9E,21E)-2-hydroxy-11-methoxy-3,7,12,14,17,17,20,24,32-nonamethyl-8,16,18,33-tetraoxa-26-azapentacyclo[25.3.1.1~4,7~.1~15,19~.0~5,30~]tritriaconta-1(30),2,4,9,21,23,27-heptaene-6,13,25,29,31-pentone (non-preferred name) (51757-20-1)

Identification
Name:	(9E,21E)-2-hydroxy-11-methoxy-3,7,12,14,17,17,20,24,32-nonamethyl-8,16,18,33-tetraoxa-26-azapentacyclo[25.3.1.1~4,7~.1~15,19~.0~5,30~]tritriaconta-1(30),2,4,9,21,23,27-heptaene-6,13,25,29,31-pentone (non-preferred name)
Synonyms:	NSC262192;NSC-262192;25-Desacetyl-25-ketorifamycin S 21,23-acetonide;51757-20-1
CAS:	51757-20-1
Molecular Formula:	C₃₈H₄₅NO₁₁
Molecular Weight:	691.764
InChI:	InChI=1/C38H45NO11/c1-17-12-11-13-18(2)36(45)39-23-16-24(40)26-27(31(23)43)30(42)21(5)34-28(26)35(44)38(9,50-34)47-15-14-25(46-10)19(3)29(41)20(4)33-22(6)32(17)48-37(7,8)49-33/h11-17,19-20,22,25,32-33,42H,1-10H3,(H,39,45)/b12-11+,15-14+,18-13+
Molecular Structure:
Properties
Flash Point:	499.7°C
Boiling Point:	902.7°C at 760 mmHg
Density:	1.3g/cm³
Refractive index:	1.597
Flash Point:	499.7°C
Safety Data