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42086-70-4

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42086-70-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42086-70-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,0,8 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42086-70:
(7*4)+(6*2)+(5*0)+(4*8)+(3*6)+(2*7)+(1*0)=104
104 % 10 = 4
So 42086-70-4 is a valid CAS Registry Number.

42086-70-4Downstream Products

42086-70-4Relevant articles and documents

WITTIG-HORNER REACTION OF DIMETHYL PHTHALIDE-3-PHOSPHONATES WITH ALDEHYDES: SYNTHESIS OF 3-YLIDENEPHTHALIDES AND CHRACTERIZATION OF THEIR E- AND Z-ISOMERS

Watanabe, Mitsuaki,Ijichi, Saori,Morimoto, Hitoshi,Nogami, Kayoko,Furukawa, Sunao

, p. 553 - 563 (2007/10/02)

Wittig-Horner reaction of dimethyl phthalide-3-phosphonates with aldehydes in the presence of lithium bis(trimethylsilyl)amide was investigated.Using their NOE experiments, both the E- and Z-isomers of 3-ylidenephthalides were clearly characterized.

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