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157738-88-0

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157738-88-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157738-88-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,7,3 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 157738-88:
(8*1)+(7*5)+(6*7)+(5*7)+(4*3)+(3*8)+(2*8)+(1*8)=180
180 % 10 = 0
So 157738-88-0 is a valid CAS Registry Number.

157738-88-0Downstream Products

157738-88-0Relevant articles and documents

2-Isocyanatocyclohex-1-ene-carbonitrile and 2-isocyanatobenzonitrile as bifunctional electrophiles in the synthesis of [c]-heteroanellated quinazoline derivatives

Thom,Zinner

, p. 469 - 475 (2007/10/02)

N'-substituted N-(2-cyanophenyl)ureas afford [1,2,4]triazolo[1,5-c]-and imidazo[1,2-c]-quinazolin-5(6H)-ones. 2-Isocyanatocyclohex-1-ene-carbonitrile as starting compound leads to the 7,8,9,10-saturated structural analogues.

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