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90140-60-6

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90140-60-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90140-60-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,4 and 0 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90140-60:
(7*9)+(6*0)+(5*1)+(4*4)+(3*0)+(2*6)+(1*0)=96
96 % 10 = 6
So 90140-60-6 is a valid CAS Registry Number.

90140-60-6Downstream Products

90140-60-6Relevant articles and documents

Heterocyclic Compounds, VI. Formation of Isomers upon Acylation of Compounds Having a 1-Aryl-4-methyl-5H-2,3-benzodiazepine Skeleton

Koeroesi, Jenoe,Lang, Tibor,Sohar, Pal,Neszmelyi, Andras,Horvath, Gyula,Zolyomi, Gabor

, p. 1476 - 1486 (2007/10/02)

Acetylation of 1-(3,4-dimethoxyphenyl)-5-ethyl-7,8-dimethoxy-4-methyl-5H-2,3-benzodiazepine (1) in hot acetic anhydride yields the isomers 2a and 3a in equal proportions.Acetylation of 1 in the presence of pyridine led exclusively to 2a, that of 1 * HCl (

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