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1333312-27-8

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1333312-27-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1333312-27-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,3,3,1 and 2 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1333312-27:
(9*1)+(8*3)+(7*3)+(6*3)+(5*3)+(4*1)+(3*2)+(2*2)+(1*7)=108
108 % 10 = 8
So 1333312-27-8 is a valid CAS Registry Number.

1333312-27-8Downstream Products

1333312-27-8Relevant articles and documents

Calix[4]bis(spirodienone) as a versatile synthon for upper rim alkoxylation of calixarenes and synthesis of novel triazole-based biscalixarene by 'CuAAC' chemistry

Thulasi, Sreeja,Savithri, Anupriya,Varma, Ramavarma Luxmi

, p. 501 - 508 (2011)

The spiro rings of calix[4]bis(spirodienone) have been opened up using various bromofunctionalised alcohols employing a novel ipso nucleophilic substitution of tert-butyl groups by alkoxy groups. Additionally, a route has been paved towards the preparation of triazole-linked biscalixarene via the copper(I)-catalysed modern version of classical Huisgen 1,3-dipolar cycloaddition of alkynyl calixarene and azidocalixarene, derived from the above-mentioned bromo-substituted calixarene.

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