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404369-25-1

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404369-25-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 404369-25-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,4,3,6 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 404369-25:
(8*4)+(7*0)+(6*4)+(5*3)+(4*6)+(3*9)+(2*2)+(1*5)=131
131 % 10 = 1
So 404369-25-1 is a valid CAS Registry Number.

404369-25-1Relevant articles and documents

Efficient synthesis of 3-hydroxyprolines and 3-hydroxyprolinols from sugars

Lee, Jin Hwan,Kang, Jae Eun,Yang, Min Suk,Kang, Kyu Young,Park, Ki Hun

, p. 10071 - 10076 (2007/10/03)

trans-3-Hydroxy-L-proline 1, trans-3-hydroxy-L-prolinol 2, cis-3-hydroxy-D-proline 3, and cis-3-hydroxy-D-prolinol 4 have been prepared in enantiomerically pure form with chirospecific manner. Key intermediates, 2-amino-3-hydroxy-4-pentenoate 9 and 17, were obtained from D-glucono-δ-lactone and L-gulonic acid γ-lactone via a simultaneous dealkoxyhalogenation.

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