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52067-89-7

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52067-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52067-89-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,0,6 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 52067-89:
(7*5)+(6*2)+(5*0)+(4*6)+(3*7)+(2*8)+(1*9)=117
117 % 10 = 7
So 52067-89-7 is a valid CAS Registry Number.

52067-89-7Downstream Products

52067-89-7Relevant articles and documents

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Touet, Joel,Faveriel, Laurent,Brown, Eric

, p. 1709 - 1720 (1995)

Treatment of the readily available (S)-(+) and (R)-(-) enantiomers of 2-aminobutan-1-ol 1 with sodium hydride followed by benzyl chloride, or a substituted benzyl halide, afforded the corresponding O-benzyl bases 4-7 in good yields. These new bases are recommended for the large scale resolution of racemic acids. For instance, they proved efficient for the practical resolutions of α-methylsuccinic acid (±)-9, N-acetylphenylglycine (±)-11, N-acetyl-(4-hydroxyphenyl) glycine (±)-14 and N-chloroacetyl-(4-hydroxyphenyl) glycine (±)-15.

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