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214550-89-7

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214550-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 214550-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,4,5,5 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 214550-89:
(8*2)+(7*1)+(6*4)+(5*5)+(4*5)+(3*0)+(2*8)+(1*9)=117
117 % 10 = 7
So 214550-89-7 is a valid CAS Registry Number.

214550-89-7Downstream Products

214550-89-7Relevant articles and documents

Synthetic studies on bengazoles of marine sponge origin. Synthesis of the core bis-oxazole fragments

Chittari, Pabba,Hamada, Yasumasa,Shioiri, Takayuki

, p. 1022 - 1024 (1998)

The core bis-oxazole fragment 3 was constructed by the coupling of the aldehyde (6) with the lithiated oxazoles (7), oxidation of the resulting bis-oxazolyl methanol (11), followed by the asymmetric reduction with (R)-(+)-BINAL-H as key steps. Preparation of another bis-oxazole fragment (4) was accomplished by the Barton-McCombie radical deoxygenation reaction of 11.

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