2021-21-8 Usage
General Description
1,2,3,6-tetrahydro-N-methylphthalimide is a chemical compound that is characterized by a phthalimide ring with a methyl and a tetrahydro substitution. It is commonly used as a reactive diluent in the production of epoxy resins, where it acts to reduce the viscosity and improve the processing properties of the resin. 1,2,3,6-tetrahydro-N-methylphthalimide is also used as a curing agent for epoxy resins, where it participates in the cross-linking reaction to form a strong and durable material. Additionally, 1,2,3,6-tetrahydro-N-methylphthalimide is utilized in the synthesis of pharmaceuticals and agrochemicals. It is important to handle this chemical with care, as it may cause irritation to the skin, eyes, and respiratory system, and may be harmful if ingested or inhaled in large amounts.
Check Digit Verification of cas no
The CAS Registry Mumber 2021-21-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,2 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2021-21:
(6*2)+(5*0)+(4*2)+(3*1)+(2*2)+(1*1)=28
28 % 10 = 8
So 2021-21-8 is a valid CAS Registry Number.
InChI:InChI=1/C9H11NO2/c1-10-8(11)6-4-2-3-5-7(6)9(10)12/h2-3,6-7H,4-5H2,1H3
2021-21-8Relevant articles and documents
Solvent-free Diels-Alder reaction in a closed batch system
Sun, Daolai,Sato, Fumiya,Yamada, Yasuhiro,Sato, Satoshi
, p. 276 - 282 (2013/05/08)
Solvent-free Diels-Alder reactions were carried out by heating a mixture of a volatile diene, such as 1,3-butadiene, isoprene, or 2,3-dimethyl-1,3- butadiene, and a dienophile, such as methyl vinyl ketone, methyl acrylate, or maleic anhydride, in a closed batch reactor. High yields of Diels-Alder products were obtained without using solvents and catalysts within a short reaction time in most of the reactions. In particular, several reactions of dienophiles with 1,3-butadiene, which is known as a diene with low reactivity because of its gaseous form, also proceeded with high yields of Diels-Alder products in the closed batch reactor under conditions pressured by the reactant vapor. Solvent-free reactions provided high yields compared to reactions in solvent since the reaction heat directly resulted in increasing the reaction temperature and pressure. Energy in the exothermic reaction was used effectively in the closed batch system under solvent-free conditions.
