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129786-01-2

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129786-01-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129786-01-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,7,8 and 6 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 129786-01:
(8*1)+(7*2)+(6*9)+(5*7)+(4*8)+(3*6)+(2*0)+(1*1)=162
162 % 10 = 2
So 129786-01-2 is a valid CAS Registry Number.

129786-01-2Relevant articles and documents

Preparation method of benzyl iodide and derivatives thereof

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Paragraph 0101-0105, (2020/06/09)

The invention discloses a preparation method of benzyl iodide and derivatives thereof. The preparation method comprises the following steps: under the reduction action of sodium borohydride, a benzylalcohol compound shown as a formula I reacts with elemental iodine to obtain benzyl iodide shown as a formula II and derivatives thereof; in the formula I and the formula II, R represents one or moresubstituents on a benzene ring and is selected from at least one of aryl, substituted or unsubstituted alkyl, halogen and nitro. The preparation method of benzyl iodide and derivatives thereof is scientific and reasonable, sodium borohydride which is mild in reactivity, low in price and easily available is used as a reducing agent, and elemental iodine is convenient and easily available; in addition, the preparation method has the characteristics of simplicity and convenience in operation, high synthesis yield, easiness in product purification, environmental friendliness and the like.

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