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34999-63-8

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34999-63-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34999-63-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,9,9 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 34999-63:
(7*3)+(6*4)+(5*9)+(4*9)+(3*9)+(2*6)+(1*3)=168
168 % 10 = 8
So 34999-63-8 is a valid CAS Registry Number.

34999-63-8Relevant articles and documents

One-pot synthesis of 1,4-dihydro-3,1-benzoxazine-2-thiones by the reaction of 2-lithiophenyl isothiocyanates with aldehydes or ketones

Kobayashi, Kazuhiro,Yokoi, Yuki,Komatsu, Toshihide,Konishi, Hisatoshi

experimental part, p. 9336 - 9339 (2011/01/12)

An efficient one-pot method for the synthesis of 4-monosubstituted and 4,4-disubstituted 1,4-dihydro-3,1-benzoxazine-2-thiones has been developed. Treatment of 2-bromophenyl isothiocyantes with butyllithium in THF at -78 °C generates 2-lithiophenyl isothi

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