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121155-47-3

121155-47-3

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121155-47-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121155-47-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,1,5 and 5 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121155-47:
(8*1)+(7*2)+(6*1)+(5*1)+(4*5)+(3*5)+(2*4)+(1*7)=83
83 % 10 = 3
So 121155-47-3 is a valid CAS Registry Number.

121155-47-3Relevant articles and documents

Vlasinich,Jones

, p. 707,709 (1964)

Dvornik et al.

, p. 3309 (1963)

Houminer

, p. 1361 (1975)

β-(Trimethylsilyl)ethoxymethyl chloride. A new reagent for the protection of the hydroxyl group

Lipshutz, Bruce H.,Pegram, Joseph J.

, p. 3343 - 3346 (2007/10/02)

Reactions of β-(trimethylsilyl)ethoxymethyl chloride with alcohols afford the corresponding ethers in high yield. Deprotection using n-Bu4NF in THF or HMPA cleanly regenerates the hydroxyl function.

Syntheses of epimeric 2 and 4 deuteriocholesterols

Nambara,Ikegawa,Ishizuka,Goto

, p. 2656 - 2661 (2007/10/06)

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