1020-83-3 Usage
General Description
1,8-Dioxacyclotetradecane-2,9-dione, also known as succinic anhydride, is a cyclic anhydride compound with a molecular formula of C8H10O3. It is derived from succinic acid and is commonly used in the production of various chemicals and polymers. It is a white crystalline solid with a melting point of 119-121°C and a boiling point of 261-262°C. Succinic anhydride is utilized as a chemical intermediate in the synthesis of pharmaceuticals, dyes, and agricultural chemicals. It is also used as a crosslinking agent in the production of polymeric materials. Additionally, it is employed as a catalyst and reactant in organic synthesis and as a curing agent for epoxy resins.
Check Digit Verification of cas no
The CAS Registry Mumber 1020-83-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,2 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1020-83:
(6*1)+(5*0)+(4*2)+(3*0)+(2*8)+(1*3)=33
33 % 10 = 3
So 1020-83-3 is a valid CAS Registry Number.
1020-83-3Relevant articles and documents
Scandium trifluoromethanesulfonate as an extremely active Lewis acid catalyst in acylation of alcohols with acid anhydrides and mixed anhydrides
Ishihara, Kazuaki,Kubota, Manabu,Kurihara, Hideki,Yamamoto, Hisashi
, p. 4560 - 4567 (2007/10/03)
Scandium trifluoromethanesulfonate (triflate), which is commercially available, is a practical and useful Lewis acid catalyst for acylation of alcohols with acid anhydrides or the esterification of alcohols by carboxylic acids in the presence of p-nitrobenzoic anhydrides. The remarkably high catalytic activity of scandium triflate can be used for assisting the acylation by acid anhydrides of not only primary alcohols but also sterically-hindered secondary or tertiary alcohols. The method presented is especially effective for selective macrolactonization of ω-hydroxy carboxylic acids.
