233667-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 233667-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,3,6,6 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 233667-81:
(8*2)+(7*3)+(6*3)+(5*6)+(4*6)+(3*7)+(2*8)+(1*1)=147
147 % 10 = 7
So 233667-81-7 is a valid CAS Registry Number.
233667-81-7Relevant articles and documents
Synthesis of some D-ribose phosphates
Pitsch, Stefan,Spinner, Christoph,Atsumi, Kunio,Ermert, Philip
, p. 291 - 294 (2007/10/03)
Unambitious syntheses of D-ribose 2-phosphate, 3-phosphate, 4-phosphate, 2,3-diphosphate, 3,4-diphosphate, 2,4-diphosphate, cyclic 2,3-phosphate, cyclic 3,4-phosphate and cyclic 2,4-phosphate are described. Their 1H- and 31P-NMR-spec