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121561-60-2

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121561-60-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121561-60-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,6 and 1 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121561-60:
(8*1)+(7*2)+(6*1)+(5*5)+(4*6)+(3*1)+(2*6)+(1*0)=92
92 % 10 = 2
So 121561-60-2 is a valid CAS Registry Number.

121561-60-2Downstream Products

121561-60-2Relevant articles and documents

Activation of hydroxyl groups in sugars using bis(tributyltin) oxide: retention of the organotin residues to give biologically active products

Jacques, Philip P. L.,Poller, Robert C.

, p. 47 - 52 (2007/10/02)

Tributyltin ethoxide has been shown to react with cyclic anhydrides to give tributylstannyl ethyl esters of phthalic, maleic and succinic acids.Treatment of tris(tributylstannyl)-D-glucose with phthalic anhydride gave either the 1,6-di-O-phthalyl or the 6-O-phthalyl derivatives, respectively, depending on conditions, demonstrating that the the stannyl group can be used for activation and subsequently retained in the product.This synthetic procedure seems preferable to that in which phthalation precedes stannylation.

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