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81818-60-2

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81818-60-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81818-60-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,1 and 8 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81818-60:
(7*8)+(6*1)+(5*8)+(4*1)+(3*8)+(2*6)+(1*0)=142
142 % 10 = 2
So 81818-60-2 is a valid CAS Registry Number.

81818-60-2Downstream Products

81818-60-2Relevant articles and documents

KINETICS OF CYCLIZATION OF 1-PHENYL-3-(1,2-DIMETHYL-3-OXO-1-BUTENYL)UREA AND ETHYL 2-METHYL-3-N-(N'-PHENYLUREIDO)-2-BUTENOATE

Kavalek, Jaromir,Hruska, Jiri,Sterba, Vojeslav

, p. 518 - 522 (2007/10/02)

1-Phenyl-3-(1,2-dimethyl-3-oxo-1-butenyl)urea (III) has been prepared by reaction of phenyl isocyanate with 4-amino-3-methyl-3-penten-2-one (I).Ethyl 2-methyl-3-N-(N'-phenylureido)-2-butenoate (V) has been prepared by analogous reaction with ethyl 3-amino

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