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21070-71-3

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21070-71-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21070-71-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,7 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21070-71:
(7*2)+(6*1)+(5*0)+(4*7)+(3*0)+(2*7)+(1*1)=63
63 % 10 = 3
So 21070-71-3 is a valid CAS Registry Number.

21070-71-3Relevant articles and documents

ORGANIC COMPOUNDS

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Paragraph 0062; 0063, (2017/04/29)

A method of imparting to, or modifying in, a comestible product, umami taste, including the addition to a comestible product base of at least one compound of formula (I) wherein one of X1, X2, or X3 is selected from the group consisting of S, N and O and the remaining two are CH2; and A is selected from in which R1, R2, R3, R4 R5, R6 are independently selected from the group consisting of H, methyl, ethyl, propyl, OH, OMe, OEt, COOH, COOR7, in which R7 is selected from linear or branched C1-C7 alkyl, and CONR8R9, in which R8 and R9 are independently selected from hydrogen and straight or branched C1-C4 alkyl; or any two adjacent substituents R2-R6 together form a ring of 5 or 6 members; and n is 1 or 0.

A recyclable biphasic system for stereoselective and easily handled hydrochalcogenations

Tidei, Caterina,Sancineto, Luca,Bagnoli, Luana,Battistelli, Benedetta,Marini, Francesca,Santi, Claudio

supporting information, p. 5968 - 5975 (2015/03/30)

Vinyl selenides and vinyl sulfides were prepared by hydrochalcogenation of alkynes with selenols and thiols generated in situ by the reduction of the corresponding diselenides and disulfides with elemental zinc in a biphasic acidic medium. The yields, ste

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