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172511-87-4

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172511-87-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172511-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,5,1 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 172511-87:
(8*1)+(7*7)+(6*2)+(5*5)+(4*1)+(3*1)+(2*8)+(1*7)=124
124 % 10 = 4
So 172511-87-4 is a valid CAS Registry Number.

172511-87-4Upstream product

172511-87-4Relevant articles and documents

New Convenient, Enantiospecific Synthesis of (S,S)- and (R,R)-2,2'-Bipyrrolidine Derivatives

Kotsuki, Hiyoshizo,Kuzume, Hiroko,Gohda, Tetsushi,Fukuhara, Misako,Ochi, Masamitsu,et al.

, p. 2227 - 2236 (1995)

An enantiomer pair of (S,S)- and (R,R)-bipyrrolidine derivatives has been prepared from D- and L-tartaric acids or D-mannitol as optically active starting materials.Taking advantage of the C2-symmetric nature of these chiral sources, the synthe

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