70844-36-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70844-36-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,8,4 and 4 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 70844-36:
(7*7)+(6*0)+(5*8)+(4*4)+(3*4)+(2*3)+(1*6)=129
129 % 10 = 9
So 70844-36-9 is a valid CAS Registry Number.
70844-36-9Relevant articles and documents
Chemical Conversion of Folic Acid to Pteroic Acid
Temple, Carroll,Rose, Jerry D.,Montgomery, John A.
, p. 3666 - 3667 (2007/10/02)
Treatment of folic acid with acetic anhydride in acetic acid gave a mixture of acetylated azlactones, which are cleaved with mild base at room temperature to give mainly acetylated pteroic acids.Removal of the acetyl groups from the components of this mix