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185622-83-7

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185622-83-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 185622-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,5,6,2 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 185622-83:
(8*1)+(7*8)+(6*5)+(5*6)+(4*2)+(3*2)+(2*8)+(1*3)=157
157 % 10 = 7
So 185622-83-7 is a valid CAS Registry Number.

185622-83-7Relevant articles and documents

Synthesis of analogues of porphobilinogen

Leeper, Finian J.,Rock, Martin,Appleton, Diana

, p. 2633 - 2642 (2007/10/03)

Syntheses are described of several analogues of porphobilinogen intended as substrates and/or inhibitors of porphobilinogen deaminase (hydroxymethylbilane synthase). 2-Methylporphobilinogen 12 has been synthesised from α-methylpyrrole 6, whereas a phosphonate analogue 20 of porphobilinogen, 8,9-didehydroporphobilinogen 26 and 9-fluoroporphobilinogen 38 have all been made from the 1H-pyrrolo[2,3-c]pyridine 14. The best route to 38 avoids fluoroacrylate 28 because of loss of fluorine during reduction of the double bond.

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