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1-amino-1-(2-aminoanilino)-2,4-dicyano-1,3-butadiene-4-carboxamide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128719-95-9

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128719-95-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128719-95-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,1 and 9 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 128719-95:
(8*1)+(7*2)+(6*8)+(5*7)+(4*1)+(3*9)+(2*9)+(1*5)=159
159 % 10 = 9
So 128719-95-9 is a valid CAS Registry Number.

128719-95-9Relevant academic research and scientific papers

Ring Transformation of 4-Amino-1H-1,5-benzodiazepine-3-carbonitrile with Active Methylene Compounds. A Novel 1,3-Migration of a Cyano Group in 1-Amino-1-(2-aminoanilino)-2,4-dicyano-4-ethoxycarbonyl-1,3-butadiene

Okamoto, Yoshihisa,Zama, Yoshimi,Itoh, Toshihiro,Aotsuka, Tomoji,Kurasawa, Yoshihisa,Takagi, Kaname

, p. 966 - 987 (2007/10/02)

The ring transformation of 4-amino-1H-1,5-benzodiazepine-3-carbonitrile hydrochloride (1) with active methylene compounds are described.The contraction to a pyridine ring ring was readily accomplished by use of DBU as a catalyst.An alternative 1,3-rearran

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