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73858-18-1

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73858-18-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73858-18-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,8,5 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 73858-18:
(7*7)+(6*3)+(5*8)+(4*5)+(3*8)+(2*1)+(1*8)=161
161 % 10 = 1
So 73858-18-1 is a valid CAS Registry Number.

73858-18-1Downstream Products

73858-18-1Relevant articles and documents

HETEROCYCLIC ANALOGS OF PLEIADIENE. 48. PYROSULFITE AS A MILD DEHYDROGENATING AGENT IN THE 2,3-DIHYDROPERIMIDINE SERIES. SYNTHESIS OF 2-POLYHYDROXYALKYLPERIMIDINES

Starshikov, N.M.,Pozharskii, A.F.

, p. 81 - 85 (1980)

2,3-Dihydroperimidines are dehydrogenated smoothly by sodium pyrosulfite in refluxing aqueous alcohol, as a result of which the corresponding perimidines are formed in high yields.The reaction of 1,8-naphthalenediamine with the aldehydic forms of sugars gives 2-polyhydroxyalkyl-2,3-dihydroperimidines, which are also aromatized by sodium pyrosulfite to give the corresponding 2-polyhydroxyalkylperimidines in high yields.

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