64400-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64400-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,4,0 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 64400-53:
(7*6)+(6*4)+(5*4)+(4*0)+(3*0)+(2*5)+(1*3)=99
99 % 10 = 9
So 64400-53-9 is a valid CAS Registry Number.
64400-53-9Relevant articles and documents
Synthesis of the Lichen Depsides Pseudocyphellarin A and B
Elix, John A.,Lajide, Labunmi
, p. 2153 - 2157 (2007/10/02)
The total synthesis of the fully substituted lichen depsides, pseudocyphellarin A (3-hydroxy-4-methoxycarbonyl-2,5,6-trimethylphenyl 3-formyl-2,4-dihydroxy-5,6-dimethylbenzoate) (1) and pseudocyphellarin B (3-hydroxy-4-methoxycarbonyl-2,5,6-trimethylpheny