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129665-28-7

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129665-28-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129665-28-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,6,6 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 129665-28:
(8*1)+(7*2)+(6*9)+(5*6)+(4*6)+(3*5)+(2*2)+(1*8)=157
157 % 10 = 7
So 129665-28-7 is a valid CAS Registry Number.

129665-28-7Upstream product

129665-28-7Downstream Products

129665-28-7Relevant academic research and scientific papers

Action of atomic fluorine on E- and Z-2-butene

Bumgardner, Carl L.,Carver, James G.

, p. 331 - 338 (1990)

Irradiation of N2F4(NF2) with E- and Z-2 butene in the gas phase leads to addition of F and NF2 across the double bond in a non-stexeoselective manner and abstraction of H to give 2- butenyl radicals which interconvert rapidly before being trapped by NF2 to yield E- and Z-1- difluoroamino-2-butene and 3-difluoramino-1-butene. The configurational instability of the 2- butenyl radicals is attributed to the exothermicity of F atom abstraction. These results are contrasted with those of other workers who observed that in condensed phase reactions abstraction by t-butoxy radical leads to 2-butenyl radicals which are configurationally stable.

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