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137196-98-6

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137196-98-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137196-98-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,1,9 and 6 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137196-98:
(8*1)+(7*3)+(6*7)+(5*1)+(4*9)+(3*6)+(2*9)+(1*8)=156
156 % 10 = 6
So 137196-98-6 is a valid CAS Registry Number.

137196-98-6Relevant articles and documents

Highly Efficient Propane-1,3-dithiol Mediated Thiol-disulphide Interchange: a Facile and Clean Methodology for S-S Reduction in Peptides

Ranganathan, Subramania,Jayaraman, Narayanaswamy

, p. 934 - 936 (2007/10/02)

Propane-1,3-dithiol, at room temperature and in the absence of any promoter, neatly brings about the S-S -> 2SH change, and the latter can be isolated as acrylonitrile adducts; the methodology has been tested with several substrates including c-lysozyme, insulin and oxytocin, and spontaneous imidazole promoted S-deprotection was observed in the case of Z-Cys(S-CH2CH2CN)His-OMe.

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