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129286-73-3

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129286-73-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129286-73-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,2,8 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 129286-73:
(8*1)+(7*2)+(6*9)+(5*2)+(4*8)+(3*6)+(2*7)+(1*3)=153
153 % 10 = 3
So 129286-73-3 is a valid CAS Registry Number.

129286-73-3Downstream Products

129286-73-3Relevant articles and documents

Lattice-controlled Norrish III Cleavage of Crystalline Methadone

Reisch, Gisela,Reisch, J.

, p. 402 - 404 (2007/10/02)

The photochemical cleavage of crystalline D-(-)-methadone yields 3-dimethylamino-1,1-diphenylbut-1-ene and propionaldehyde.Abstraction of beta hydrogen (Norrish III cleavage) by the electronically activated carbonyl oxygen induces this process which involves a five-membered cyclic transition type that is preformed by the conformation fixed in the lattice.It can be attributed to a reaction of zero order.

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