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74481-57-5

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74481-57-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74481-57-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,8 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74481-57:
(7*7)+(6*4)+(5*4)+(4*8)+(3*1)+(2*5)+(1*7)=145
145 % 10 = 5
So 74481-57-5 is a valid CAS Registry Number.

74481-57-5Relevant articles and documents

Total synthesis and structure assignment of papuamide B, A potent marine cyclodepsipeptide with anti-HIV properties

Xie, Weiqing,Ding, Derong,Zi, Weiwei,Li, Guangyu,Ma, Dawei

, p. 2844 - 2848 (2008/12/23)

Synthesis in stereo: The first total synthesis of papuamide B, a cyclic peptide isolated from a marine sponge, has been achieved. The configuration of three stereogenic centers of its dienoic acid unit has been established by comparison to a series of ste

Conjugation of selenols with aziridine-2-carboxylic acid-containing peptides

Ide, Nathan D.,Galoni?, Danica P.,Van Der Donk, Wilfred A.,Gin, David Y.

, p. 2011 - 2014 (2007/10/03)

The addition of PhSeH to aziridine-2-carboxylic acid containing peptides is described, thus expanding the scope of nucleophiles for the opening of this class of electrophilic peptide substrates. The process offers a new strategy for the generation of usef

Total synthesis of actinomycin D(C1) via a ring-opening reaction of aziridine

Okawa,Nakajima,Tanaka

, p. 1815 - 1816 (2007/10/02)

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