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883745-87-7

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883745-87-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 883745-87-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,3,7,4 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 883745-87:
(8*8)+(7*8)+(6*3)+(5*7)+(4*4)+(3*5)+(2*8)+(1*7)=227
227 % 10 = 7
So 883745-87-7 is a valid CAS Registry Number.

883745-87-7Downstream Products

883745-87-7Relevant articles and documents

Efficient route to 4a-methyltetrahydrofluorenes: A total synthesis of (±)-dichroanal B via intramolecular Heck reaction

Planas, Loic,Mogi, Muneto,Takita, Hirofumi,Kajimoto, Tetsuya,Node, Manabu

, p. 2896 - 2898 (2007/10/03)

An efficient new route based on intramolecular Heck cyclization of the diene 11 was developed to prepare the 4a-methyltetrahydrofluorene diterpenoids and utilized for the total synthesis of (±)-dichroanal B with significantly improved overall yield.

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