The CAS Registry Mumber 77649-57-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,4 and 9 respectively; the second part has 2 digits, 5 and 7 respectively. Calculate Digit Verification of CAS Registry Number 77649-57: (7*7)+(6*7)+(5*6)+(4*4)+(3*9)+(2*5)+(1*7)=181 181 % 10 = 1 So 77649-57-1 is a valid CAS Registry Number.
A rapid synthesis of p-nitrophenyl 2-O-α-L-fucopyranosyl-β-D-galactopyranoside
Matta, Khushi L.,Piskorz, Conrad F.,Barlow, Joseph J.
, p. C1 - C3 (1981)
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Get Best Price for77649-57-1Acetic acid (2R,3S,4S,5R,6S)-3-acetoxy-2-acetoxymethyl-6-(4-nitro-phenoxy)-5-((2S,3S,4R,5R,6S)-3,4,5-triacetoxy-6-methyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-4-yl ester