10023-11-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 10023-11-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,0,2 and 3 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 10023-11:
(7*1)+(6*0)+(5*0)+(4*2)+(3*3)+(2*1)+(1*1)=27
27 % 10 = 7
So 10023-11-7 is a valid CAS Registry Number.
InChI:InChI=1/C18H18O6/c1-2-4-13-16-11(7-9(24-13)8-14(20)21)17(22)10-5-3-6-12(19)15(10)18(16)23/h3,5-6,9,13,19H,2,4,7-8H2,1H3,(H,20,21)/t9-,13+/m0/s1
10023-11-7Relevant articles and documents
3. Naphthopyranquinone Antibiotics: Novel Enantioselective Syntheses of Frenolicin B and Some of Its Stereoisomers
Masquelin, Thierry,Hengartner, Urs,Streith, Jacques
, p. 43 - 58 (1997)
Two new enantioselective syntheses of the naphthopyranquinone antibiotic frenolicin B (1), of its enantiomer 2, and of its diastereoisomers 3 and 4 were accomplished using two different routes from optically active β-hydroxy esters (R)- and (S)-11 and 18.
