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123810-00-4

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123810-00-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123810-00-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,8,1 and 0 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 123810-00:
(8*1)+(7*2)+(6*3)+(5*8)+(4*1)+(3*0)+(2*0)+(1*0)=84
84 % 10 = 4
So 123810-00-4 is a valid CAS Registry Number.

123810-00-4Downstream Products

123810-00-4Relevant articles and documents

Specific Preparation and Structure Determination of 3A,3C,3E-Tri-O-sulfonyl-β-cyclodextrin

Fujita, Kahee,Tahara, Tsutomu,Yamamura, Hatsuo,Imoto, Taiji,Koga, Toshitaka,et al.

, p. 877 - 880 (2007/10/02)

A reaction of β-cyclodextrin with β-naphthylsulfonyl chloride in alkaline aqueous acetonitrile gave only one isomer (3A,3C,3E-trisulfonate, 17.8percent) of five 3,3,3-tri-O-sulfonyl-β-cyclodextrins.The isomer was converted to 3A,6A:3C,6C:3E,6E-trianhydro-β-cyclodextrin, the structure of which was assigned by comparing its spectral and HPLC data of the trianhydro-β-cyclodextrin with those of all authentic 3,6:3,6:3,6-trianhydro-β-cyclodextrins prepared by the reactions of known 6-tri-O-sulfonylated β-cyclodextrins with aqueous alkali.

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