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131703-87-2

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131703-87-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131703-87-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,7,0 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 131703-87:
(8*1)+(7*3)+(6*1)+(5*7)+(4*0)+(3*3)+(2*8)+(1*7)=102
102 % 10 = 2
So 131703-87-2 is a valid CAS Registry Number.

131703-87-2Downstream Products

131703-87-2Relevant articles and documents

Enantioselective Syntheses of Vinblastine, Leurosidine, Vincovaline, and 20'-epi-Vincovaline

Kuehne, Martin E.,Matson, Patricia A.,Bornmann, William G.

, p. 513 - 528 (2007/10/02)

The binary indole-indoline alkaloids vinblastine (1), leurosidine (13), 20'-epi-vincovaline (14a), and vincovaline (14b) were obtained by coupling of vindoline (3) to the tetracyclic intermediates 7a, 7b or 22a, 22b, followed by reduction and cyclization

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