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128359-99-9

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128359-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128359-99-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,5 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128359-99:
(8*1)+(7*2)+(6*8)+(5*3)+(4*5)+(3*9)+(2*9)+(1*9)=159
159 % 10 = 9
So 128359-99-9 is a valid CAS Registry Number.

128359-99-9Relevant articles and documents

Total synthesis of (-)-domoic acid. A revision of the original structure

Ohfune,Tomita

, p. 3511 - 3513 (1982)

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Lewis acid-induced internal proton return in enolate complexes with chiral amines

Vedejs, Edwin,Lee, Namkyu

, p. 891 - 899 (2007/10/02)

Treatment of a 1:1:1 mixture of enolate 5:amine 6:lithium amide 7 with BF3·OEt2 affords the naproxen amide 4a with an enantiomer excess of 77% (>90% yield). The result is attributed to Lewis acid-induced internal proton return (ipr)

Selective Transformation of O-2-(Trimethylsilyl)ethyl and O-tert-Butyl Carbamates into O-Benzyl Carbamates Using Benzyl Trichloroacetimidate

Barrett, Anthony G. M.,Pilipauskas, Daniel

, p. 5170 - 5173 (2007/10/02)

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