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1385831-81-1

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1385831-81-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1385831-81-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,5,8,3 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1385831-81:
(9*1)+(8*3)+(7*8)+(6*5)+(5*8)+(4*3)+(3*1)+(2*8)+(1*1)=191
191 % 10 = 1
So 1385831-81-1 is a valid CAS Registry Number.

1385831-81-1Downstream Products

1385831-81-1Relevant articles and documents

Microwave-assisted synthesis of highly functionalized guanidines on soluble polymer support

Chen, Chih-Hau,Tung, Chieh-Li,Sun, Chung-Ming

, p. 3959 - 3962 (2012)

An efficient method for the N,N′-di(Boc)-protected guanidines containing piperazine and homopiperazine scaffolds has been developed under multi-step microwave irradiation. Followed by alkylation of carbamate-protected guanidines with various alkyl halides is also explored. This protocol proceeds via deprotonation of the acidic N-carbamate hydrogen of the guanidine by sodium hydride on soluble polymer support. In this manner, highly functionalized guanidines were obtained after cleavage from the support. The reaction is tolerant of a wide range of functional groups on both the alkyl halide and guanidine components. In addition, the reaction is sufficiently simple workup by precipitation in each step to yield the substituted guanidines in high purity. In conjunction with microwave irradiation and soluble polymer support, this method provides an efficient route to access highly functionalized guanidines.

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