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1140067-25-9

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1140067-25-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1140067-25-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,0,0,6 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1140067-25:
(9*1)+(8*1)+(7*4)+(6*0)+(5*0)+(4*6)+(3*7)+(2*2)+(1*5)=99
99 % 10 = 9
So 1140067-25-9 is a valid CAS Registry Number.

1140067-25-9Relevant articles and documents

METHOD FOR CLEAVING AMIDE BONDS

-

, (2019/01/25)

A method for cleaving amide bonds, comprising: a) providing a molecule comprising an amide group;b) reacting the molecule comprising an amide group with hydroxylamine (NH2OH) or a salt thereof to cleave the amide bond of the amide group.

Microwave-assisted protection of primary amines as 2,5-dimethylpyrroles and their orthogonal deprotection

Walia, Amit,Kang, Soosung,Silverman, Richard B

, p. 10931 - 10937 (2013/11/19)

Primary amines can be readily doubly protected as N-substituted 2,5-dimethylpyrroles. Although this protecting group is stable toward strong bases and nucleophiles, long reaction times are required for both the protection and deprotection steps, generally resulting in low deprotection yields. By employing microwave irradiation, protection and deprotection reaction times are dramatically reduced. Furthermore, deprotection with dilute hydrochloric acid in ethanol increases reaction yields. Diverse deprotection conditions have been developed in conjunction with microwave irradiation, so that protection as an N-substituted 2,5-dimethylpyrrole can be orthogonal to other standard amine protecting groups, such as tert-butyloxycarbonyl (Boc), carbobenzyloxy (Cbz), and 9-fluorenylmethyloxycarbonyl (Fmoc).

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