77252-56-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77252-56-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,5 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77252-56:
(7*7)+(6*7)+(5*2)+(4*5)+(3*2)+(2*5)+(1*6)=143
143 % 10 = 3
So 77252-56-3 is a valid CAS Registry Number.
77252-56-3Relevant articles and documents
Formamidine as a versatile protecting group for primary amines: A mild procedure for hydrolytic removal
Toste,McNulty,Still
, p. 1617 - 1624 (2007/10/02)
A mild, zinc chloride-promoted cleavage of N,N,-dimethyl-formamidine derivatives of primary amines to the free amines is described. Under slightly different hydrolytic conditions the corresponding N-formyl derivatives can be isolated.