5516-13-2 Usage
General Description
Methoxyiminomalononitrile is a chemical compound with the molecular formula C5H4N4O. It is a synthetic reagent commonly used in organic chemistry as a versatile building block for the synthesis of various heterocyclic compounds. It is often used in the preparation of pyrimidine derivatives and other nitrogen-containing organic compounds. Methoxyiminomalononitrile has also been studied for its potential application as a reactive intermediate in the synthesis of pharmaceutical drugs and agrochemicals. Additionally, it has shown promise as a precursor for the synthesis of fluorescent dyes and materials for organic electronic devices due to its favorable electronic properties. However, it is important to handle methoxyiminomalononitrile with care as it is a hazardous chemical that can cause irritation to the skin, eyes, and respiratory system upon exposure.
Check Digit Verification of cas no
The CAS Registry Mumber 5516-13-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,1 and 6 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5516-13:
(6*5)+(5*5)+(4*1)+(3*6)+(2*1)+(1*3)=82
82 % 10 = 2
So 5516-13-2 is a valid CAS Registry Number.
5516-13-2Relevant articles and documents
Synthesis process of 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(methoxyimino)acetic acid
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Paragraph 0028, (2017/01/02)
The invention relates to a synthesis process of 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(methoxyimino)acetic acid. With cyanoacetamide serving as a starting material, 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(methoxyimino)acetic acid is obtained through a hydroxyl oximation reaction, a methylation reaction, a cyclization reaction, a nitrile hydrolysis reaction and the like. Particularly, due to the fact that hydroxyapatite is added in the fifth step to serve as a catalyst, the yield of the intermediate product 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(methoxyimino)acetonitrile and the total yield of the final product 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(methoxyimino)acetic acid can be effectively increased, and compared with the total yield not exceeding 9% in the prior art, the total yield of the technical scheme reaches 13% or so and is substantially increased; cost is lowered; industrial large-scale application is facilitated.
