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122090-90-8

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122090-90-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 122090-90-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,0,9 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 122090-90:
(8*1)+(7*2)+(6*2)+(5*0)+(4*9)+(3*0)+(2*9)+(1*0)=88
88 % 10 = 8
So 122090-90-8 is a valid CAS Registry Number.

122090-90-8Relevant articles and documents

EFFICIENT SYNTHESIS OF NATURAL ENANTIOMER OF SPOROGEN-AO 1 (13-DESOXYPHOMENONE), A SPOROGENIC SESQUITERPENE FROM ASPERGILLUS ORYZAE

Kitahara, Takeshi,Kurata, Hitoshi,Mori, Kenji

, p. 4339 - 4350 (2007/10/02)

An efficient total synthesis of (+)-sporogen-AO 1 (13-desoxyphomenone) 1 was achieved in 20 steps from ethyl (1R,2S)-5,5-ethylenedioxy-2-hydroxycyclohexanecarboxylate 3 in 8.3percent overall yield.The optically active 3 with 98.4percent e.e. was easily ob

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