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118493-33-7

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118493-33-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118493-33-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,4,9 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 118493-33:
(8*1)+(7*1)+(6*8)+(5*4)+(4*9)+(3*3)+(2*3)+(1*3)=137
137 % 10 = 7
So 118493-33-7 is a valid CAS Registry Number.

118493-33-7Upstream product

118493-33-7Downstream Products

118493-33-7Relevant articles and documents

Application of Negishi cross-coupling to the synthesis of the cyclic tripeptides OF4949-III and K-13

Nolasco, Luca,Gonzalez, Manuel Perez,Caggiano, Lorenzo,Jackson, Richard F. W.

experimental part, p. 8280 - 8289 (2010/02/17)

(Chemical Equation Presented) Syntheses of the cyclic tripeptides OF4949-III 1 and K-13 2 are reported, in which the key steps are intermolecular and intramolecular Negishi cross-coupling reactions, respectively. In addition, the synthesis of a protected

Pd-catalysed C-C macrocyclisation of a simple tripeptide: Efficient total synthesis of K-13

Perez-Gonzalez,Jackson

, p. 2423 - 2424 (2007/10/03)

The cyclic tripeptide K-13 has been prepared in 11 steps from commercially available starting materials (11% overall yield); the key step is the Pd-catalysed macrocyclisation of the zinc reagent prepared by selective insertion of zinc into the aliphatic C

The total synthesis of the isodityrosine-derived cyclic tripeptides OF4949-III and K-13. Determination of the absolute configuration of K-13

Evans,Ellman

, p. 1063 - 1072 (2007/10/02)

The asymmetric syntheses of the two cyclic tripeptides OF4949-III and K-13 have been completed. The absolute stereochemical assignment of the former compound has been confirmed, while the absolute configuration of the latter has been established for the f

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