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137401-68-4

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137401-68-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137401-68-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,0 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137401-68:
(8*1)+(7*3)+(6*7)+(5*4)+(4*0)+(3*1)+(2*6)+(1*8)=114
114 % 10 = 4
So 137401-68-4 is a valid CAS Registry Number.

137401-68-4Relevant articles and documents

SYNTHESIS AND PROPERTIES OF 2,5-DIMETHYL-3-FUROYLTHIOUREAS

Jurasek, Adolf,Badory, Viktor,Zvak, Vladimir,Stetinova, Jarmila

, p. 1711 - 1718 (2007/10/02)

Addition of a series of aromatic or aliphatic amines to 2,5-dimethyl-3-furoyl isothiocyanate (I) afforded the corresponding N-(2,5-dimethyl-3-furoyl)-N'-aryl- or alkylthioureas II or III.Spectral data (IR, UV, 1H NMR, 13C NMR and mass spectra) of compounds prepared are presented.

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