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69637-62-3

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69637-62-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69637-62-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,6,3 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 69637-62:
(7*6)+(6*9)+(5*6)+(4*3)+(3*7)+(2*6)+(1*2)=173
173 % 10 = 3
So 69637-62-3 is a valid CAS Registry Number.

69637-62-3Relevant articles and documents

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Yu,L.-C.,Helquist,P.

, p. 3423 - 3426 (1978)

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USE OF METHYL 3-(N,N-DIMETHYLAMINO)PROPIONATE AS A SYNTHON FOR THE CONSTRUCTION OF α-METHYLENE γ-BUTYROLACTONES

Yu, Lin-Chen,Helquist, Paul

, p. 591 - 598 (2007/10/02)

The lithium enolate of methyl 3-(N,N-dimethylamino)propionate reacts with allylic halides to give alkylation products which may be converted into α-methylene γ-butyrolactones by a reaction sequence which includes iodolactonization among other simple steps.

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