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1570135-74-8

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1570135-74-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1570135-74-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,7,0,1,3 and 5 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1570135-74:
(9*1)+(8*5)+(7*7)+(6*0)+(5*1)+(4*3)+(3*5)+(2*7)+(1*4)=148
148 % 10 = 8
So 1570135-74-8 is a valid CAS Registry Number.

1570135-74-8Relevant articles and documents

Novel preparation method 4--alkoxyl nicotinic acid compound

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Paragraph 0037-0039, (2020/03/25)

(I) Of the 4--oxyl nicotinic acid compound is prepared by firstly forming nicotinamide. with nicotinic acid compound as a starting material 4 - and then selectively etherifying with a carbon hydrogen bonding area as a key technology . The preparation method has the advantages of simple raw material, technological reaction conditions, convenience 4 - operation and good industrial prospect, as shown 4 - and the preparation method comprises the following steps: preparing.alkoxyl nicotinic, acid compound, by hydrolysis and selective, etherification by, a carbon hydrogen bond area. as a key technology.

Novel 2- aryloxynicotinamide compound as well as preparation method and application thereof

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Paragraph 0037-0039, (2020/03/17)

The invention relates to a novel 2 - aryloxynicotinamide compound as well as a preparation method and application. of the 2 - aryloxynicotinamide compound as shown in the following formula (I). The compound can be used for preparing,aryloxy nicotinic acid compounds and derivatives thereof through a condensation reaction and a carbon hydrogen bond direct etherification method as shown in the formula shown in the specification. The invention relates to a novel method for preparing. 2 - aryloxynicotinic acid compounds and, derivatives thereof as shown in the structural formula shown. in the structural formula shown in the following formula. In Formula (I), the steric configuration of the carbon atom attached to the substituent R is R or S,Ar, and the aromatic substituent (is shown in more detail in the specification).

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