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212846-71-4

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212846-71-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 212846-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,8,4 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 212846-71:
(8*2)+(7*1)+(6*2)+(5*8)+(4*4)+(3*6)+(2*7)+(1*1)=124
124 % 10 = 4
So 212846-71-4 is a valid CAS Registry Number.

212846-71-4Upstream product

212846-71-4Downstream Products

212846-71-4Relevant articles and documents

Chlorination of pyridylacetylenes in the phase transfer catalytic system CCl4/KOH/18-crown-6

Abele,Abele,Rubina,Lukevics

, p. 122 - 123 (1998)

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Method for preparing 1-halogenated alkyne under catalysis of heterogeneous Ag catalyst at room temperature

-

Paragraph 0023-0036; 0043, (2021/05/12)

The invention discloses a novel method for preparing 1-halogenated alkyne under the catalysis of a heterogeneous Ag catalyst at room temperature. The method comprises the steps of mixing terminal alkyne compounds containing different substituent groups, N

Elusive ethynyl azides: Trapping by 1,3-dipolar cycloaddition and decomposition to cyanocarbenes

Banert, Klaus,Hagedorn, Manfred,Wutke, Jens,Ecorchard, Petra,Schaarschmidt, Dieter,Lang, Heinrich

supporting information; experimental part, p. 4058 - 4060 (2010/09/06)

Although they decompose rapidly to produce cyanocarbenes, ethynyl azides were generated from (chloroethynyl)arenes and trapped for the first time by 1,3-dipolar cycloaddition at cyclooctyne.

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