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20825-90-5

20825-90-5

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20825-90-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20825-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,2 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20825-90:
(7*2)+(6*0)+(5*8)+(4*2)+(3*5)+(2*9)+(1*0)=95
95 % 10 = 5
So 20825-90-5 is a valid CAS Registry Number.

20825-90-5Upstream product

20825-90-5Downstream Products

20825-90-5Relevant articles and documents

Streitwieser,Mares

, p. 2444 (1968)

Direct and convenient conversion of alcohols to fluorides

Yin, Jingjun,Zarkowsky, Devin S.,Thomas, David W.,Zhao, Matthew M.,Huffman, Mark A.

, p. 1465 - 1468 (2007/10/03)

Directly mixing primary, secondary, and tertiary alcohols with nC 4F9SO2F-NR3(HF)3-NR 3 in THF or MeCN results in convenient conversion to the corresponding fluorides in high yields. The readily available reagents are easy to handle, and the mild, almost neutral reaction conditions allow for excellent functional group compatibility. A NR3(HF)3/NR3 ratio of ≤ 1:2 gives the highest reactivity.

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