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119706-76-2

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119706-76-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119706-76-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,7,0 and 6 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 119706-76:
(8*1)+(7*1)+(6*9)+(5*7)+(4*0)+(3*6)+(2*7)+(1*6)=142
142 % 10 = 2
So 119706-76-2 is a valid CAS Registry Number.

119706-76-2Relevant articles and documents

A TOTAL SYNTHESIS OF (+)-GEODIAMOLIDES A AND B, THE NOVEL CYCLODEPSIPEPTIDES

Hirai, Yoshiro,Yakota, Katsuyuki,Yamazaki, Takao,Momose, Takefumi

, p. 1101 - 1119 (2007/10/02)

Diastereo-controlled total synthesis of (+)-geodiamolides A (1) and B (2) has been accomplished via a prior synthesis of the tetrapropionate-derived fragment 7 and of the halogenated N-methyltyrosyltripeptide 6, the latter involving direct halogenation of the tripeptide 5, and subsequent coupling of both fragments followed by the trichlorobenzoyl chloride-mediated macrolactonization, respectively.

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