138564-59-7 Usage
Description
5-Methyl-2-[(2-nitrophenyl)amino]thiophene-3-carbonitrile is an organic compound with a chemical structure that features a thiophene ring, a nitrophenyl group, and a methyl group. It is characterized as a red solid and is known to be an impurity in the pharmaceutical compound Olanzapine (O253750), specifically referred to as Olanzapine impurity A (EP).
Uses
Used in Pharmaceutical Industry:
5-Methyl-2-[(2-nitrophenyl)amino]thiophene-3-carbonitrile is used as an impurity reference standard for the quality control and analysis of Olanzapine (O253750). Its presence in the pharmaceutical compound is crucial for ensuring the purity and safety of the drug, as impurities can affect the drug's efficacy and potential side effects.
As an impurity reference standard, it is utilized in the development and validation of analytical methods, such as high-performance liquid chromatography (HPLC) and other chromatographic techniques, to accurately quantify and control the levels of impurities in the final drug product. This helps in maintaining the quality and consistency of the pharmaceutical product, ultimately contributing to the overall safety and efficacy of the medication for patients.
Check Digit Verification of cas no
The CAS Registry Mumber 138564-59-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,6 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138564-59:
(8*1)+(7*3)+(6*8)+(5*5)+(4*6)+(3*4)+(2*5)+(1*9)=157
157 % 10 = 7
So 138564-59-7 is a valid CAS Registry Number.
InChI:InChI=1/C12H9N3O2S/c1-8-6-9(7-13)12(18-8)14-10-4-2-3-5-11(10)15(16)17/h2-6,14H,1H3
138564-59-7Relevant articles and documents
Catalyst-free and selective synthesis of 2-aminothiophenes and 2-amino-4,5-dihydrothiophenes from 4-thiazolidinones in water
Zeng, Fanxun,Liu, Pengjian,Shao, Xusheng,Li, Zhong,Xu, Xiaoyong
, p. 59808 - 59815 (2016)
2-Aminothiophenes and 2-amino-4,5-dihydrothiophenes were selectively and conveniently synthesized from 4-thiazolidinone derivatives. The meaningful product 10m was efficiently synthesized, which is a commonly-used intermediate for preparing olanzapine. The present method holds many advantages, such as easy operation, high yields, is catalyst-free and uses water as the solvent.
Antibodies to Olanzapine Haptens and Use Thereof
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Page/Page column, (2014/03/24)
Disclosed is an antibody which binds to olanzapine, which can be used to detect olanzapine in a sample such as in a competitive immunoassay method. The antibody can be used in a lateral flow assay device for point-of-care detection of olanzapine, including multiplex detection of aripiprazole, olanzapine, quetiapine, and risperidone in a single lateral flow assay device.
HAPTENS OF OLANZIPINE
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Page/Page column 57, (2014/03/25)
The invention relates to compounds of Formula I, wherein R1, R2, and R3 are defined in the specification, useful for the synthesis of novel conjugates and immunogens derived from olanzapine. The invention also relates to conjugates of an olanzapine hapten and a protein.