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1234549-11-1

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1234549-11-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1234549-11-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,4,5,4 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1234549-11:
(9*1)+(8*2)+(7*3)+(6*4)+(5*5)+(4*4)+(3*9)+(2*1)+(1*1)=141
141 % 10 = 1
So 1234549-11-1 is a valid CAS Registry Number.

1234549-11-1Downstream Products

1234549-11-1Relevant articles and documents

Cyclic peptide synthesis with thioacids

Sasaki, Kaname,Crich, David

supporting information; experimental part, p. 3254 - 3257 (2010/10/02)

(Figure Presented) C-Terminal amino acid 9-fluorenylmethylthioesters may be carried through Boc chemistry solution phase peptide synthesis sequences. After insertion of the final residue in the form of an Fmoc carbamate, treatment with piperidine releases a seco-peptide as a C-terminal thioacid that on treatment with Sanger's reagent undergoes cyclization to a cyclic peptide. Cyclic penta- and hexapeptides have been synthesized in this manner, as has a cyclic glycopeptide. Functional group compatibility with alcohols and carboxylic acids is demonstrated.

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