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38655-54-8

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38655-54-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 38655-54-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,6,5 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 38655-54:
(7*3)+(6*8)+(5*6)+(4*5)+(3*5)+(2*5)+(1*4)=148
148 % 10 = 8
So 38655-54-8 is a valid CAS Registry Number.

38655-54-8Downstream Products

38655-54-8Relevant articles and documents

Assignment of Isomeric Hydroxyhydantoins: Linked-scan, Tandem and High-resolutions Studies

Onisko, Bruce,Chang, Lydia,Lewis, Sydell

, p. 125 - 131 (2007/10/02)

The mass spectral fragmentation of hydroxyhydantoins was studied by a combination of high-resolution, linked-scan and collisionally activated decomposition (CAD) experiments.The endeavor resulted in the structural assignment of four pairs of synthetic hydroxyhydantoin isomers.A key feature in differentiating 1-methyl-3-aryl-5-hydroxy-2,4-imidazolidinediones from 1-aryl-3-methyl-5-hydroxy-2,4-imidazolidinediones is that under electron ionization (EI) conditions only the 1-methyl-3-aryl-5-hydroxy-2,4-imidazolidinediones yield the +* ion.The analogous +* ion (where Ar is the aryl group) was present in the EI spectra of both isomers and its origins are explained by the linked-scan and CAD experiments performed.

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