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131077-79-7

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131077-79-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131077-79-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,7 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131077-79:
(8*1)+(7*3)+(6*1)+(5*0)+(4*7)+(3*7)+(2*7)+(1*9)=107
107 % 10 = 7
So 131077-79-7 is a valid CAS Registry Number.

131077-79-7Relevant articles and documents

Syntheses and biological activities of (+/-)-streptovitacin A and E-73.

Kondo,Oritani,Yamashita

, p. 1531 - 1536 (2007/10/02)

(+/-)-Streptovitacin A (1) and its stereoisomers were synthesized by an aldol reaction of (+/-)-2,4-dimethyl-4-trimethylsiloxy-1-cyclohexanones (4b and 9) with 4-(2-oxoethyl)-2,6-piperidinedione (5). E-72 (2) was derived from synthetic 1. (+/-)-1 showed m

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