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69712-22-7

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69712-22-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69712-22-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,7,1 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 69712-22:
(7*6)+(6*9)+(5*7)+(4*1)+(3*2)+(2*2)+(1*2)=147
147 % 10 = 7
So 69712-22-7 is a valid CAS Registry Number.

69712-22-7Relevant articles and documents

Carbon-branched carbohydrate chirons: practical access to both enantiomers of 2-C-methyl-ribono-1,4-lactone and 2-C-methyl-arabinonolactone

Booth, Kathrine V.,da Cruz, Filipa P.,Hotchkiss, David J.,Jenkinson, Sarah F.,Jones, Nigel A.,Weymouth-Wilson, Alexander C.,Clarkson, Robert,Heinz, Thomas,Fleet, George W.J.

scheme or table, p. 2417 - 2424 (2009/04/06)

Readily crystallized 2-C-methyl-d-ribono-1,4-lactone is formed in a one-pot procedure from d-glucose without any protecting groups by treatment with dimethylamine to give an Amadori ketose and then with aqueous calcium hydroxide in yields of approximately 25%; 2-C-methyl-l-ribono-1,4-lactone is similarly produced from l-glucose. 3,4-O-Isopropylidene-2-C-methyl-d-arabinono-1,5-lactone and 2-C-methyl-d-arabinono-1,4-lactone were prepared in a combined 60% yield by the Kiliani reaction of sodium cyanide with a protected 1-deoxy-d-ribulose derived from d-erythronolactone; the enantiomeric arabinonolactones are similarly available from l-erythronolactone.

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