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442519-30-4

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442519-30-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 442519-30-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,5,1 and 9 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 442519-30:
(8*4)+(7*4)+(6*2)+(5*5)+(4*1)+(3*9)+(2*3)+(1*0)=134
134 % 10 = 4
So 442519-30-4 is a valid CAS Registry Number.

442519-30-4Downstream Products

442519-30-4Relevant articles and documents

Convenient syntheses of 2,3,4,5-tetrahydro-1,4-benzothiazepines, -1,4-benzoxazepines and -1,4-benzodiazepines

Katritzky, Alan R.,Xu, Yong-Jiang,He, Hai-Ying

, p. 592 - 598 (2007/10/03)

4-Benzotriazolylmethyl-2,3,4,5-tetrahydro-1,4-benzothiazepines 5a,b, -1,4-benzoxazepine (12) and -1,4-benzodiazepine (20) are obtained via aluminium chloride mediated intramolecular cyclizations of N,N-bis(1H-1,2,3-benzotriazol-1-ylmethyl)-2-(arylthio)eth

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