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417714-14-8

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417714-14-8 Usage

General Description

Lenvatinib Impurity g, also known as 21H12FN3O4, is a chemical impurity that is typically found in lenvatinib, a medication used to treat thyroid cancer and kidney cancer. It is present in small quantities as an impurity in lenvatinib formulations. Lenvatinib Impurity g is classified as a pyrimidine derivative and contains a fluorine atom in its chemical structure. It is important for pharmaceutical manufacturers to monitor and control the levels of this impurity in lenvatinib formulations to ensure the safety and efficacy of the medication for patients.

Check Digit Verification of cas no

The CAS Registry Mumber 417714-14-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,1,7,7,1 and 4 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 417714-14:
(8*4)+(7*1)+(6*7)+(5*7)+(4*1)+(3*4)+(2*1)+(1*4)=138
138 % 10 = 8
So 417714-14-8 is a valid CAS Registry Number.

417714-14-8Upstream product

417714-14-8Downstream Products

417714-14-8Relevant articles and documents

Lenvatinib impurity and preparation method thereof

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Paragraph 0072-0104, (2019/10/01)

The invention discloses a lenvatinib impurity for the first time. The molecular formula of the lenvatinib impurity is C20H18N4O4, and the structural formula is shown in a formula I. The invention further provides a preparation method of the lenvatinib imp

Nitrogen-containing aromatic derivatives

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, (2008/06/13)

Compounds represented by the following general formula: [wherein Ag is an optionally substituted 5- to 14-membered heterocyclic group, etc.; Xg is —O—, —S—, etc.; Yg is an optionally substituted C6-14 aryl group, an optionally substituted 5- to 14-membered heterocyclic group, etc.; and Tg1 is a group represented by the following general formula: (wherein Eg is a single bond or —N(Rg2)—, Rg1 and Rg2 each independently represent a hydrogen atom, an optionally substituted C1-6 alkyl group, etc. and Zg represents a C1-8 alkyl group, a C3-8 alicyclic hydrocarbon group, a C6-14 aryl group, etc.)], salts thereof or hydrates of the foregoing.

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