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129544-60-1

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129544-60-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129544-60-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,5,4 and 4 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 129544-60:
(8*1)+(7*2)+(6*9)+(5*5)+(4*4)+(3*4)+(2*6)+(1*0)=141
141 % 10 = 1
So 129544-60-1 is a valid CAS Registry Number.

129544-60-1Downstream Products

129544-60-1Relevant academic research and scientific papers

1,3-Dipolar cycloadditions of 3-methylenecephams with diazoalkanes

Baldwin, Jack E.,Pitlik, Janos

, p. 2483 - 2486 (1990)

The 3-methylenecephams underwent 1,3-dipolar cycloaddition reactions with diazomethane to give spiropyrazolinocephams in a completely stereo- and regioselective manner. Thermal breakdown of these 1-pyrazolines led to spirocyclopropane and vinyl derivatives.

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