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81668-88-4

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81668-88-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81668-88-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,6 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81668-88:
(7*8)+(6*1)+(5*6)+(4*6)+(3*8)+(2*8)+(1*8)=164
164 % 10 = 4
So 81668-88-4 is a valid CAS Registry Number.

81668-88-4Relevant articles and documents

THE APPLICATION OF 2-(4-CHLOROPHENYL)-SULFONYLETHOXYCARBONYL (CPSEC) GROUP IN THE SYNTHESIS OF A DNA SEGMENT USING THE PHOSPHOTRIESTER APPROACH

Josephson, Staffan,Balgobin, Neil,Chattopadhyaya, Jyoti

, p. 4537 - 4540 (2007/10/02)

The new base labile CPSEC group has been successfully employed for the protection of the 5'-hydroxyl function to synthesize a "universal Stop codon" DNA sequence: 5'd(TCAATCAATCA)3'.

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