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178757-76-1

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178757-76-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178757-76-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,7,5 and 7 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 178757-76:
(8*1)+(7*7)+(6*8)+(5*7)+(4*5)+(3*7)+(2*7)+(1*6)=201
201 % 10 = 1
So 178757-76-1 is a valid CAS Registry Number.

178757-76-1Downstream Products

178757-76-1Relevant articles and documents

Synthesis and X-ray crystallographic study of cyclobis-(1 → 2)-α-D-glucopyranosyl peracetate

Pozsgay, Vince,Dubois, Eric P.,Lotter, Hermann,Neszmelyi, Andras

, p. 165 - 173 (2007/10/03)

Treatment of O-(3,4,6-tri-O-acetyl-2-O-benzyl- α-D-glucopyranosyl)-(1 → 2)-3,4,6-tri-O-acetyl-α-D-glucopyranosyl trichloroacetimidate with BF3·Et2O gave a high yield of the peracetate of cyclobis-(1 → 2)-α-D-glucopyranosyl (6). Compound 6 crystallizes in the space group P21, [a = 6.888(2), b = 24.771(5), c = 9.105(2) A, β = 111.49(2)°, Z = 2] and shows a high degree of symmetry. In 6 the two α-D-glucopyranosyl residues are in a slightly distorted chair conformation. The glucose moieties are interconnected by a 1,4-dioxane moiety which is in a boat conformation, with the anomeric carbon atoms in the bow positions.

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