87694-44-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87694-44-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,9 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 87694-44:
(7*8)+(6*7)+(5*6)+(4*9)+(3*4)+(2*4)+(1*4)=188
188 % 10 = 8
So 87694-44-8 is a valid CAS Registry Number.
87694-44-8Relevant articles and documents
Conversion of Phenolic α-Amino Acids into α-Keto Acids
Klein, Christian,Schulz, Guenter,Steglich, Wolfgang
, p. 1638 - 1639 (2007/10/02)
A one-pot conversion of tyrosine (1a) and 3,4-dihydroxyphenylalanine (DOPA) (1b) into 3-(4-hydroxyphenyl)pyruvic acid (2a) and 3-(3,4-dihydroxyphenyl)pyruvic acid (2b), respectively, via 2-trifluoromethyl-3-oxazolin-5-ones 5 is described.
