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844641-16-3

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844641-16-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 844641-16-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,4,6,4 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 844641-16:
(8*8)+(7*4)+(6*4)+(5*6)+(4*4)+(3*1)+(2*1)+(1*6)=173
173 % 10 = 3
So 844641-16-3 is a valid CAS Registry Number.

844641-16-3Upstream product

844641-16-3Relevant articles and documents

Inclusion of aliphatic alcohols in pockets of (S)-threonyl-(S)- phenylglycine using grinding method

Akazome, Motohiro,Toma, Shusaku,Horiguchi, Tatsunori,Megumi, Ken,Matsumoto, Shoji

, p. 2844 - 2848 (2011)

Inclusion compounds of a dipeptide, (S)-threonyl-(S)-phenylglycine (Thr-Phg), with several aliphatic alcohols were easily prepared by grinding them in a mortar. Thr-Phg molecules arranged in antiparallel to construct a sheet, and guest alcohols were accommodated in a chiral pocket between the sheets. 3-Butyn-2-ol and 2-butanol were included with moderate enantioselectivity, 57% ee (R) and 49% ee (R), respectively. The role of the hydroxy group of Thr-Phg is not only to construct the unique pocket but also to capture guest alcohols by hydrogen bonding.

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