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28074-94-4

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28074-94-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28074-94-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,0,7 and 4 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 28074-94:
(7*2)+(6*8)+(5*0)+(4*7)+(3*4)+(2*9)+(1*4)=124
124 % 10 = 4
So 28074-94-4 is a valid CAS Registry Number.

28074-94-4Relevant academic research and scientific papers

TRIMETHYLSILYL CYANIDE IN PEPTIDE STRATEGIES. PART III. NEEDLESSNESS FOR COMPLEMENTARY HYDROXYL SIDE-CHAIN PROTECTION

Anteunis, M.J.O.,Becu, Chr.,Becu, F.

, p. 133 - 136 (2007/10/02)

No extra side-chain protection is needed for Ser, Thr, Tyr, and Cys (nor for Asp and Glu) in peptide syntheses that are mediated by TMS-CN, whereby silylesters and ethers are formed and are stable enough even during activation of carboxylic components.Thi

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