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119647-99-3

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119647-99-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119647-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,6,4 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 119647-99:
(8*1)+(7*1)+(6*9)+(5*6)+(4*4)+(3*7)+(2*9)+(1*9)=163
163 % 10 = 3
So 119647-99-3 is a valid CAS Registry Number.

119647-99-3Downstream Products

119647-99-3Relevant articles and documents

2(3H)- AND 2(5H)-FURANONES. III. AN EFFICIENT SYNTHESIS AND THE ESCHENMOSER-MANNICH REACTION OF N-SUBSTITUTED 4-AMINO-2(5H)-FURANONE

Momose, Takefumi,Toyooka, Naoki,Nishi, Takafumi,Takeuchi, Yumi

, p. 1907 - 1924 (1988)

A series of N-substituted 4-amino-2(5H)-furanones (II) was derived from β-tetronic acid (I) by direct action of several aliphatic and aromatic amines.The Eschenmoser-Mannich reaction of II readily gave the corresponding Mannich bases (VI) quantitatively.

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