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25809-45-4

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25809-45-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25809-45-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,8,0 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 25809-45:
(7*2)+(6*5)+(5*8)+(4*0)+(3*9)+(2*4)+(1*5)=124
124 % 10 = 4
So 25809-45-4 is a valid CAS Registry Number.

25809-45-4Downstream Products

25809-45-4Relevant academic research and scientific papers

Inclusion complex containing epoxy resin composition for semiconductor encapsulation

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, (2014/03/21)

The invention is an epoxy resin composition for sealing a semiconductor, including (A) an epoxy resin and (B) a clathrate complex. The clathrate complex is one of (b1) an aromatic carboxylic acid compound, and (b2) at least one imidazole compound represented by formula (II): wherein R2 represents a hydrogen atom, C1-C10 alkyl group, phenyl group, benzyl group or cyanoethyl group, and R3 to R5 represent a hydrogen atom, nitro group, halogen atom, C1-C20 alkyl group, phenyl group, benzyl group, hydroxymethyl group or C1-C20 acyl group. The composition has improved storage stability, retains flowability when sealing, and achieves an effective curing rate applicable for sealing delicate semiconductors.

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