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185503-99-5

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185503-99-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 185503-99-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,5,5,0 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 185503-99:
(8*1)+(7*8)+(6*5)+(5*5)+(4*0)+(3*3)+(2*9)+(1*9)=155
155 % 10 = 5
So 185503-99-5 is a valid CAS Registry Number.

185503-99-5Relevant articles and documents

Synthesis of dye-labeled lysine derivatives

Shen, Zongxuan,Zhang, Yawen,Chen, Yan

, p. 2525 - 2532 (2000)

The N(ε)-dabcyl-N(α)-(9-fluorenylmethoxy)-carbonyllysine was prepared by reaction of lysine-Cu2+ complex with the N-hydroxysuccinimide (HOSu) activated ester of [4-(4'-dimethylamino)phenylazo]benzoic acid (dabcyl acid) followed by treatment with EDTA and acylation with Fmoc-OSu, and the N(α)tert-butyloxycarbonyl-N(ε)-dabcyllysine was prepared by reaction of N(α)-tertbutyloxycarbonyllysine with dabcyl-OSu.

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