55898-33-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55898-33-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,9 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 55898-33:
(7*5)+(6*5)+(5*8)+(4*9)+(3*8)+(2*3)+(1*3)=174
174 % 10 = 4
So 55898-33-4 is a valid CAS Registry Number.
InChI:InChI=1/C34H60O10/c1-11-24(29(38)22(8)28(37)23(9)30-19(5)14-18(4)25(41-30)15-27(36)43-40)31-20(6)16-32(10,42-31)34(39)21(7)17-33(13-3,44-34)26(35)12-2/h18-26,28,30-31,35,37,39-40H,11-17H2,1-10H3/t18-,19+,20+,21-,22+,23?,24+,25+,26+,28-,30+,31?,32+,33-,34-/m1/s1
55898-33-4Relevant articles and documents
Total Synthesis of the Polyether Antibiotic Lysocellin. 2. Stereocontrolled Synthesis of the C10-C23 Fragment and Its Aldol Condensation with the C1-C9 Fragment to Complete the Total Synthesis of Lysocellin
Horita, Kiyoshi,Tanaka, Kazuhiro,Inoue, Takayuki,Yonemitsu, Osamu
, p. 5541 - 5544 (2007/10/02)
The C10-C23 ethyl ketone (4) was synthesized via coupling of the C16-C23 aldehyde (3) with the C11-C15 fragment (8), and subjected to the aldol reaction with the C1-C9 aldehyde (2) to complete the first stereoselective synthesis of the polyether antibioti