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207120-79-4

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207120-79-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 207120-79-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,1,2 and 0 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 207120-79:
(8*2)+(7*0)+(6*7)+(5*1)+(4*2)+(3*0)+(2*7)+(1*9)=94
94 % 10 = 4
So 207120-79-4 is a valid CAS Registry Number.

207120-79-4Relevant articles and documents

Synthesis of the C(18)-C(34) fragment of amphidinolide C and the C(18)-C(29) fragment of amphidinolide F

Roy, Sudeshna,Spilling, Christopher D.

supporting information; experimental part, p. 5326 - 5329 (2011/01/05)

A convergent synthesis of the C(18)-C(34) fragment of amphidinolide C and the C(18)-C(29) fragment of amphidinolide F is reported. The approach involves the synthesis of the common intermediate tetrahydrofuranyl-β- ketophosphonate via cross metathesis, Pd

Total synthesis of milbemycins: A synthesis of (6R)-6-hydroxy-3,4- dihydromilbemycin E

Helliwell, Madeleine,Karim, Sufia,Parmee, Emma R.,Thomas, Eric J.

, p. 3636 - 3653 (2007/10/03)

Following studies using benzyloxymethyl isopropenyl ketone 5 and ethyl 3-(3-furyl)-3-oxopropanoate 6, Robinson reactions between aryloxymethyl isopropenyl ketones 19 and 5 and ethyl 3-(2-trimethylsilyl-3-furyl)-3- oxopropanoate 20 were found to be stereos

Study of the stability of carbocations by chlorosulfonyl isocyanate reaction with ethers

Kim, Ji Duck,Han, Gyoonhee,Jeong, Lak Shin,Park, Hyun-Ju,Zee, Ok Pyo,Jung, Young Hoon

, p. 4395 - 4402 (2007/10/03)

The stability order of various alkyl, allyl, and benzyl carbocations was investigated using the novel technique for comparing the stability of carbocations in solution developed by using a simple CSI reaction with various ethers. The p-methoxycinnamyl carbocation was the most stable in our reaction system and the next stable carbocation was the p-methoxybenzyl carbocation. The stability of the other carbocations decreased with methacryl, t-butyl, cinnamyl, acryl, benzyl, 2° and allyl carbocations in that order.

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