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51755-49-8

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51755-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51755-49-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,7,5 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 51755-49:
(7*5)+(6*1)+(5*7)+(4*5)+(3*5)+(2*4)+(1*9)=128
128 % 10 = 8
So 51755-49-8 is a valid CAS Registry Number.

51755-49-8Downstream Products

51755-49-8Relevant articles and documents

1,2-Diphenyl-3,5-dimethyl-4-oxo-6,7-diazabicyclohept-2-ene, a nitrogen unsubstituted diazetidine with an unusually unreactive nitrogen.

McIntyre, Deane D.,MacKay, Donald,Wong, Lichin L.

, p. 1316 - 1323 (2007/10/02)

In the title ring system, the benzylic nitrogen (N7), whether substituted or not, is abnormally unreactive.Hydrolysis of the di-urethanes 3a or b occurs readily at N6 to give 10a or b, but not at all at N7.In 3d Pd-H2 remo

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