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73233-07-5

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73233-07-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73233-07-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,2,3 and 3 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 73233-07:
(7*7)+(6*3)+(5*2)+(4*3)+(3*3)+(2*0)+(1*7)=105
105 % 10 = 5
So 73233-07-5 is a valid CAS Registry Number.

73233-07-5Downstream Products

73233-07-5Relevant articles and documents

Direct Formation of the Steroid Nucleus by a Biomimetic Cyclization

Johnson, William S.,McCarry, Brian E.,Markezich, R. L.,Boots, Sharon G.

, p. 352 - 359 (2007/10/02)

The aim of this study was to synthesize the trienynol 3 and to study its cyclization.The substrate was synthesized by a convergent route, the key step being the stereoselective Wittig-Schlosser condensation of the known aldehyde 19 with the phosphorane 18

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