104443-43-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104443-43-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,4,4 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 104443-43:
(8*1)+(7*0)+(6*4)+(5*4)+(4*4)+(3*3)+(2*4)+(1*3)=88
88 % 10 = 8
So 104443-43-8 is a valid CAS Registry Number.
InChI:InChI=1/C51H60O19/c1-21-30(53)10-12-37(64-21)70-51-35(55)19-49(5,61)20-50(51,62)15-14-27-42(51)47-40-29(39(48(60)69-47)25-6-8-26(52)9-7-25)16-28(46(59)41(40)45(27)58)33-18-34(44(57)24(4)63-33)68-36-13-11-32(22(2)65-36)67-38-17-31(54)43(56)23(3)66-38/h6-9,14-16,21-24,30-34,36-38,43-44,52-54,56-57,59,61-62H,10-13,17-20H2,1-5H3/t21-,22+,23-,24-,30+,31-,32+,33-,34-,36+,37+,38+,43-,44-,49+,50+,51+/m1/s1
104443-43-8Relevant articles and documents
A Novel Type of Non-enzymatic Reaction during the Late Steps in the Biosynthesis of the Angucycline Antibiotics Urdamycins C and D
Rohr, Juergen
, p. 113 - 114 (2007/10/02)
Investigations of the late steps in the biosynthesis of the urdamycin complex showed the surprising result that the interconversion of urdamycin A (1) into the urdamycins C (2) and D (3) are due to non-enzymatic condensations of (1) with 4-hydroxyphenylpy
