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178453-42-4

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178453-42-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178453-42-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,4,5 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 178453-42:
(8*1)+(7*7)+(6*8)+(5*4)+(4*5)+(3*3)+(2*4)+(1*2)=164
164 % 10 = 4
So 178453-42-4 is a valid CAS Registry Number.

178453-42-4Downstream Products

178453-42-4Relevant articles and documents

New types of nonionic surfactants with sugar head groups

Schmidt, Richard R.,Jankowski, Karin

, p. 867 - 879 (2007/10/03)

The head group/lipophilic tail ratio is used to categorize amphiphilic compounds into different types. Some representatives of the 2/1 type with two sugar head groups and one lipophilic chain, namely compounds 6a-d, were synthesized from readily available precursors. Similarly, from 2,3-di-O-alkyl and 1,3-di-O-alkyl derivatives of D-threitol 2/2-type amphiphiles 13a-d, 15a-d and 20a-d, respectively, were obtained. Due to the different spatial demand of the sugar moieties relative to the lipophilic part, surface tension (σ) and critical micelle concentration (cmc) are clearly distinguished in these different structural types of nonionic surfactants. VCH Verlagsgesellschaft mbH, 1996.

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