18273-06-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18273-06-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,2,7 and 3 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 18273-06:
(7*1)+(6*8)+(5*2)+(4*7)+(3*3)+(2*0)+(1*6)=108
108 % 10 = 8
So 18273-06-8 is a valid CAS Registry Number.
InChI:InChI=1/C40H38N4O16/c45-33(46)5-1-17-21(9-37(53)54)29-14-27-19(3-7-35(49)50)22(10-38(55)56)30(43-27)15-28-20(4-8-36(51)52)24(12-40(59)60)32(44-28)16-31-23(11-39(57)58)18(2-6-34(47)48)26(42-31)13-25(17)41-29/h13-16,41-42H,1-12H2,(H,45,46)(H,47,48)(H,49,50)(H,51,52)(H,53,54)(H,55,56)(H,57,58)(H,59,60)/b25-13-,26-13-,27-14-,28-15-,29-14-,30-15-,31-16-,32-16-
18273-06-8Relevant articles and documents
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Cookson,Rimington
, (1954)
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Studies on the formation of porphyrinogens from monopyrroles in presence of the enzymes PBG deaminase and/or Uro'gen III synthase
Pichon-Santander, Clotilde,Ian Scott
, p. 8669 - 8672 (2007/10/03)
The substrate-specificities of two enzymes in the biosynthetic pathway to vitamin B12, PBG deaminase and Uro'gen III synthase, which are involved in the formation of Uro'gen III from the pyrrole PBG, are investigated for the preparation of Uroporphyrin analogs. Both enzymes display strong substrate-specificity. However, tetramerization of pyrroles with carboxylate β-substituents in mildly basic buffer represents the best and most rapid route to a family of Uro I analogs for enzymatic activity studies.
