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111854-71-8

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111854-71-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111854-71-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,8,5 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 111854-71:
(8*1)+(7*1)+(6*1)+(5*8)+(4*5)+(3*4)+(2*7)+(1*1)=108
108 % 10 = 8
So 111854-71-8 is a valid CAS Registry Number.

111854-71-8Downstream Products

111854-71-8Relevant articles and documents

Synthesis of 10-Propargylfolic Acid from 2-Amino-6-(bromomethyl)-4(1H)-pteridinone

Piper, James R.,McCaleb, George S.,Montgomery, John A.

, p. 279 - 282 (2007/10/02)

6-(Bromomethyl)-2,4-pteridinediamine hydrobromide (1) is readily converted to 2-amino-6-(bromomethyl)-4(1H)-pteridinone hydrobromide (2) by treatment with 48percent hydrobromic acid.Compound 2 is of interest for direct attachment of the (2-amino-3,4-dihydro-4-oxo-6-pteridinyl)methyl group to appropriate side-chain precursors of analogues of folic acid, particularly those bearing functional groups incompatible with conditions required for hydrolytic deamination of the corresponding 2,4-diaminopteridine analogues.An example of the use of 2 in this connection is demonstrated through synthesis of 10-propargylfolic acid.

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