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64535-98-4

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64535-98-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64535-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,5,3 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 64535-98:
(7*6)+(6*4)+(5*5)+(4*3)+(3*5)+(2*9)+(1*8)=144
144 % 10 = 4
So 64535-98-4 is a valid CAS Registry Number.

64535-98-4Downstream Products

64535-98-4Relevant articles and documents

Solvent effects in esterification of phthalic anhydride on sulfated titania-based solid acid

Khodadadi-Moghaddam, Mohmmad,Salimi, Farshid,Jamshidi, Leila,Jafari, Nasrin,Sahebalzamani, Hajar

experimental part, p. 533 - 541 (2012/05/07)

Esterification of phthalic anhydride with 2-octanol has been studied in the presence of sulfated titania. This study shows that sulfated titania has strong catalytic effects on esterification reactions. The catalyst was characterized with x-ray diffraction, FT-IR, Brunauer Emmett Teller, SEM and thermogravimetric methods. The effect of the type and volume of solvent has been investigated. Three solvents were used in this work: acetonitrile, dimethyl sulfoxide (DMSO) and an ionic liquid, 2-hydroxy ethylammonium formate. The results show that addition of various solvents has significant effects on the reaction rate of phthalic anhydride. DMSO and 2-hydroxy ethylammonium formate enhance the reaction rate but acetonitrile reduces it.

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