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137444-68-9

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137444-68-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137444-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,4 and 4 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137444-68:
(8*1)+(7*3)+(6*7)+(5*4)+(4*4)+(3*4)+(2*6)+(1*8)=139
139 % 10 = 9
So 137444-68-9 is a valid CAS Registry Number.

137444-68-9Downstream Products

137444-68-9Relevant articles and documents

1,4-Pentandien-3-ones, XXXII. Reaction of 2-acetylthiophene and 2-acetylfuran with malononitrile and aldehydes, and synthesis and properties of phenylene-bis [(thienyl/furyl)nicotinonitrile] derivatives

Greiner-Bechert,Otto

, p. 563 - 572 (2007/10/02)

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