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1238-08-0

Propanedioic acid, [[(4-nitrophenyl)amino]thioxomethyl]-, diethyl ester, also known as 4-nitrophenyl thioacetyl diethyl ester, is a complex organic compound with the chemical formula C13H16N2O5S. It is a derivative of propanoic acid, featuring a 4-nitrophenyl group attached to a thioacetyl moiety, which is further esterified with two ethyl groups. Propanedioic acid, [[(4-nitrophenyl)amino]thioxomethyl]-, diethyl ester is characterized by its yellow crystalline appearance and is soluble in organic solvents. It is primarily used as a synthetic intermediate in the preparation of various pharmaceuticals and agrochemicals, particularly in the synthesis of compounds with potential biological activity. Due to its reactivity and the presence of functional groups, it is important to handle Propanedioic acid, [[(4-nitrophenyl)amino]thioxomethyl]-, diethyl ester with care, following appropriate safety protocols.

1238-08-0

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1238-08-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1238-08-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,3 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1238-08:
(6*1)+(5*2)+(4*3)+(3*8)+(2*0)+(1*8)=60
60 % 10 = 0
So 1238-08-0 is a valid CAS Registry Number.

1238-08-0Relevant articles and documents

Rearrangements of 2-pyridyl-3-arylaminoisoxazol-5(2H)-ones to imidazo[1,2-a]pyridines under flash-vacuum-pyrolysis

Setamdideh, Davood,Khanahmadzadeh, Salah,Khorshidi, Nasrin

experimental part, p. 2884 - 2890 (2012/07/17)

2-Pyridyl-3-arylaminoisoxazol-5(2H)-ones, rearranged under flash-vacuum-pyrolysis (FVP) conditions accompanied by elimination of carbon dioxide to give imidazo[1,2-a]pyridines in high to excellent yields (85-95 %).

2-Aryl-3-arylaminoisoxazol-5(2H)-ones as sources of indoles and imidazo[1,2-a]pyridines

Jeffery, David,Prager, Rolf H,Turner, David,Dreimanis, Monica

, p. 9965 - 9972 (2007/10/03)

2-Aryl-3-arylaminoisoxazol-5(2H)-ones undergo solvolysis to form 1,3-dipoles that undergo intramolecular cyclisation to form either imidazopyridines or indoles. The mode of cyclisation is controlled by the electronegativity of the aryl substituents.

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