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138075-99-7

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138075-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138075-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,0,7 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138075-99:
(8*1)+(7*3)+(6*8)+(5*0)+(4*7)+(3*5)+(2*9)+(1*9)=147
147 % 10 = 7
So 138075-99-7 is a valid CAS Registry Number.

138075-99-7Relevant articles and documents

Chiral 2-Vinyl-1,2,3-oxazaphospholidin-2-ones: New Dienophiles for Asymmetric Diels-Alder Reactions

Katagiri, Nobuya,Yamamoto, Mitsuo,Iwaoka, Tomoyasu,Kaneko, Chikara

, p. 1429 - 1430 (1991)

Diels-Alder reactions of chiral dienophiles: (2R,4S)- and (2S,4S)-2-vinyl-1,2,3-oxazaphospholidin-2-ones (3 and 4) derived from (S)-valinol with cyclopentadiene led to mixtures of endo- and exo-adducts with high diastereofacial selectivity (>90percent for

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