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21123-69-3

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21123-69-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21123-69-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,2 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21123-69:
(7*2)+(6*1)+(5*1)+(4*2)+(3*3)+(2*6)+(1*9)=63
63 % 10 = 3
So 21123-69-3 is a valid CAS Registry Number.

21123-69-3Relevant articles and documents

Reaction of 1-aryl-, 1,3-diaryl- and 1-alkyl-3-aryl-S-alkyl-isothioureas with 4-alkyl/aryl thiosemicarbazides: Formation of 4-alkyl/aryl-3-arylamino-5-mercapto- 1,2,4-triazoles and 2,5-diarylamino-1,3,4-thiadiazoles

Joshua,Annie

, p. 759 - 763 (2007/10/02)

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