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1227042-56-9

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1227042-56-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1227042-56-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,0,4 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1227042-56:
(9*1)+(8*2)+(7*2)+(6*7)+(5*0)+(4*4)+(3*2)+(2*5)+(1*6)=119
119 % 10 = 9
So 1227042-56-9 is a valid CAS Registry Number.

1227042-56-9Downstream Products

1227042-56-9Relevant articles and documents

Preparation and use of cysteine orthoesters for solid-supported synthesis of peptides

Huang, Zedu,Derksen, Darren J.,Vederas, John C.

supporting information; experimental part, p. 2282 - 2285 (2010/08/04)

Synthesis of a chiral cysteine derivative 2 with the carboxyl protected by an acid-labile 4-methyl-2,6,7-trioxabicyclo[2.2.2]octyl (OBO) orthoester is reported. A disulfide anchoring strategy is used to link the sulfur of this OBO cysteine derivative onto

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