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1381848-20-9

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1381848-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1381848-20-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,1,8,4 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1381848-20:
(9*1)+(8*3)+(7*8)+(6*1)+(5*8)+(4*4)+(3*8)+(2*2)+(1*0)=179
179 % 10 = 9
So 1381848-20-9 is a valid CAS Registry Number.

1381848-20-9Downstream Products

1381848-20-9Relevant articles and documents

Synthesis of symmetrical and unsymmetrical N, N ′-diaryl guanidines via copper/N-methylglycine-catalyzed arylation of guanidine nitrate

Xing, Hui,Zhang, Ye,Lai, Yisheng,Jiang, Yongwen,Ma, Dawei

experimental part, p. 5449 - 5453 (2012/08/07)

CuI/N-methylglycine-catalyzed coupling reaction of guanidine nitrate with both aryl iodides and bromides takes place at 70-100 °C, affording symmetrical N,N′-diaryl guanidines with good to excellent yields. Unsymmetrical N,N′-diaryl guanidines can be assembled via monoarylation of guanidine nitrate with aryl iodides bearing a strong electron-withdrawing group and subsequent coupling with another aryl iodide.

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