105020-45-9 Usage
General Description
1H-Pyrazole-3-carboxylic acid, 4-cyano-, methyl ester (9CI) is a chemical compound with a molecular formula of C7H6N4O2. It is a methyl ester derivative of pyrazole, a heterocyclic organic compound commonly used in pharmaceutical and agrochemical industries. 1H-Pyrazole-3-carboxylicacid,4-cyano-,methylester(9CI) is also known for its potential biological and pharmacological activities, such as anti-inflammatory, analgesic, and anti-tumor properties. It is typically used as a building block for the synthesis of various drug candidates and active pharmaceutical ingredients. Additionally, it is important to handle this compound with care as it may pose potential health and safety hazards if not properly handled. Overall, 1H-Pyrazole-3-carboxylic acid, 4-cyano-, methyl ester (9CI) is an important chemical compound with a range of potential applications in the fields of pharmaceuticals and agrochemicals.
Check Digit Verification of cas no
The CAS Registry Mumber 105020-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,0,2 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 105020-45:
(8*1)+(7*0)+(6*5)+(5*0)+(4*2)+(3*0)+(2*4)+(1*5)=59
59 % 10 = 9
So 105020-45-9 is a valid CAS Registry Number.
105020-45-9Relevant articles and documents
Synthesis and Transformations of Methyl (E)-2-(Acetylamino)-3-cyanoprop-2-enoate und Methyl (E)-2-(Benzoylamino)-3-cyanoprop-2-enoate, Versatile Reagents for the Preparation of Polyfunctional Heterocyclic Systems
Pizzioli, Lucija,Ornik, Brina,Svete, Jurij,Stanovnik, Branko
, p. 231 - 235 (2007/10/03)
Methyl (E)-2-(acetylamino)-3-cyanoprop-2-enoate (2a) and its 2-benzoyl analog 2b were prepared from the corresponding methyl (Z)-2-(acylamino)-3-(dimethylamino)propenoates 1. Multifunctional compounds 2 are versatile synthons for preparation of polysubstituted heterocyclic systems such as pyrroles 4, pyrimidines 5 and 6, pyridazines 7, pyrazoles 8, 9, and 11, and isoxazoles 10.
THE ASTOUNDING REACTION OF DIAZOMETHANE WITH DIMETHYL 2,3-DICYANOFUMARATE
Huisgen, Rolf,Mitra, Abhijit,Moran, Joaquin Rodriguez
, p. 2429 - 2436 (2007/10/02)
The title reaction afforded the pyrazole derivatives 3 and 4 as well as the N-methyl-1,2,3-triazolecarboxylic esters 5 - 7.The poly-step sequence was clarified; the key intermediates are the 1-pyrazoline 18, the 2-pyrazoline 2, the 4H-pyrazole 12, the pyrazole 22, and methyl cyanoformate.