138350-33-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138350-33-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,5 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138350-33:
(8*1)+(7*3)+(6*8)+(5*3)+(4*5)+(3*0)+(2*3)+(1*3)=121
121 % 10 = 1
So 138350-33-1 is a valid CAS Registry Number.
138350-33-1Relevant articles and documents
REACTION OF PHOSPHORYLATED QUINONE METHIDES WITH TRIVALENT PHOSPHORYL COMPOUNDS
Gross, H.,Keitel, I.,Costisella, B.
, p. 83 - 86 (2007/10/02)
By reaction of bisphosphoryl quinone methides 2 with diethyl phosphite or diphenylphosphine oxide, depending on sterical requirements, the trisphosphorylderivatives 4a and 4b or 5 and 6 respectively, are formed. The latter reaction represents a new phosph
