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532989-54-1

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532989-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 532989-54-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,3,2,9,8 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 532989-54:
(8*5)+(7*3)+(6*2)+(5*9)+(4*8)+(3*9)+(2*5)+(1*4)=191
191 % 10 = 1
So 532989-54-1 is a valid CAS Registry Number.

532989-54-1Downstream Products

532989-54-1Relevant articles and documents

Total synthesis of (+)-epiepoformin, (+)-epiepoxydon and (+)-bromoxone employing a useful chiral building block, ethyl (1R,2S)-5,5-ethylenedioxy-2-hydroxycyclohexanecarboxylate

Tachihara, Toru,Kitahara, Takeshi

, p. 1773 - 1780 (2007/10/03)

Enantioselective total synthesis of (+)-epiepoformin 1, (+)-epiepoxydon 2 and (+)-bromoxone 3 using a chiral building block, ethyl (1R,2S)-5,5-ethylenedioxy-2-hydroxycyclo- hexanecarboxylate 6, is described. Since the synthesis afforded intermediates 18, 2 and 25, it accomplished a formal synthesis of (-)-theobroxide 19, (-)-phyllostine 22, (+)-herveynone 27 and (-)-asperpentyn 28. The usefulness of 6 for the synthesis of natural epoxycyclohexene derivatives was demonstrated.

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