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87421-55-4

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87421-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87421-55-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,4,2 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 87421-55:
(7*8)+(6*7)+(5*4)+(4*2)+(3*1)+(2*5)+(1*5)=144
144 % 10 = 4
So 87421-55-4 is a valid CAS Registry Number.

87421-55-4Downstream Products

87421-55-4Relevant articles and documents

Chiral separation of basic compounds on sulfated β-cyclodextrin-coated zirconia monolith by capillary electrochromatography

Hong, Jong-Seong,Park, Jung Hag

, p. 1809 - 1813 (2013/07/26)

Sulfated β-cyclodextrin (SCD)-coated zirconia monolith was used as the chiral stationary phase in capillary electrochromatography for enantiomeric separation of basic chiral compounds. SCD adsorbed on the zirconia surface provided a stable chiral stationary phase in reversed-phase eluents. Retention, chiral selectivity and resolution of a set of six basic chiral compounds were measured in eluents of varying pH, composition of methanol and buffer. Optimum mobile phase condition for the separation of the compounds was found to be methanol content of 30%, buffer concentration of 30 mM and pH of 4.0.

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