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690211-39-3

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690211-39-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 690211-39-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,2,1 and 1 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 690211-39:
(8*6)+(7*9)+(6*0)+(5*2)+(4*1)+(3*1)+(2*3)+(1*9)=143
143 % 10 = 3
So 690211-39-3 is a valid CAS Registry Number.

690211-39-3Relevant articles and documents

Application of intramolecular enyne metathesis to the synthesis of aza[4.2.1]bicyclics: Enantiospecific total synthesis of (+)-anatoxin-a

Brenneman, Jehrod B.,Martin, Stephen F.

, p. 1329 - 1331 (2007/10/03)

A concise synthesis of the potent nAChR agonist (4)-anatoxin-a (1) has been completed in a series of only nine chemical operations and 27% overall yield from commercially available D-methyl pyroglutamate (4). The synthesis features a novel procedure for t

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