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98670-36-1

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98670-36-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98670-36-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,7 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 98670-36:
(7*9)+(6*8)+(5*6)+(4*7)+(3*0)+(2*3)+(1*6)=181
181 % 10 = 1
So 98670-36-1 is a valid CAS Registry Number.

98670-36-1Downstream Products

98670-36-1Relevant articles and documents

Preparation method of substituted 2, 3-phthalazinone compound

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Paragraph 0081; 0082, (2018/07/30)

The invention provides a preparation method of a substituted 2, 3-phthalazinone compound. The method includes the steps of: (1) adding substituted hydrazine and substituted o-carboxybenzaldehyde intoa reaction container, controlling the reaction temperature at 50DEG C-150DEG C, and carrying out thermal insulation reaction under mechanical mixing; and (2) carrying out TLC or gas phase monitoring reaction, at the end of the reaction, adding a precipitating agent into the reaction system, conducting stirring for 0.5-1.0h, and conducting standing and filtering to obtain a solid crystal, i.e. thesubstituted 2, 3-phthalazinone compound. Starting from cheap and easily available raw materials, the preparation method provided by the invention employs one-pot process for efficient preparation of aseries of highly bioactive substituted 2, 3-phthalazinone compounds with a yield of 90%-99% under a molten state. The method has the characteristics of wide substrate application range, no adding ofcatalyst, no use of solvent and mild conditions, the reaction time is shortened by 95% or more than that of the catalytic preparation method under the traditional solvent condition, and the product purity is very high.

Isoindoline derivatives of opianic acid

Somogyi

, p. 1679 - 1691 (2007/10/02)

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