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3'-ethoxy-8',8'-diphenyl-8'H-8'λ5-spiro[fluorene-9,2'-phosphindolo[1,2-b][1,2]oxaphosphete] is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

64627-09-4

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64627-09-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64627-09-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,6,2 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 64627-09:
(7*6)+(6*4)+(5*6)+(4*2)+(3*7)+(2*0)+(1*9)=134
134 % 10 = 4
So 64627-09-4 is a valid CAS Registry Number.
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