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1265831-02-4

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1265831-02-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1265831-02-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,5,8,3 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1265831-02:
(9*1)+(8*2)+(7*6)+(6*5)+(5*8)+(4*3)+(3*1)+(2*0)+(1*2)=154
154 % 10 = 4
So 1265831-02-4 is a valid CAS Registry Number.

1265831-02-4Downstream Products

1265831-02-4Relevant articles and documents

Preparation and reactions of (1 H-tetrazol-5-yl)zinc pivalates

Tüllmann, Carl Phillip,Steiner, Sebastian,Knochel, Paul

, p. 2357 - 2363 (2020)

The preparation and reactivity of new solid heterocyclic organozinc reagents, namely N -protected (1 H -tetrazol-5-yl)zinc pivalates, as storable solids with appreciably air and moisture stability are reported. They are obtained in high yields from protected 1 H -tetrazoles by de-protonation using the mixed zinc-magnesium base TMPZnCl·Mg(OPiv) 2(abbreviated as TMPZnOPiv; TMP = 2,2,6,6-tetramethylpiperidyl). Subsequent cross-couplings and copper-catalyzed electrophilic aminations using hydroxylamine benzoates give access to functionalized 1 H -tetrazoles while tolerating many functional groups.

Three-component strategy toward 5-membered heterocycles from isocyanide dibromides.

Kaim, Laurent El,Grimaud, Laurence,Patil, Pravin

, p. 1261 - 1263 (2011/04/25)

A three-component strategy starting from isocyanides allows a straightforward synthesis of five-membered ring heterocycles. New cascades were developed involving the addition of a nitrogenated nucleophile-an azide or a tetrazole-on isocyanide dibromides,

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