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442850-39-7

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442850-39-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 442850-39-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,8,5 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 442850-39:
(8*4)+(7*4)+(6*2)+(5*8)+(4*5)+(3*0)+(2*3)+(1*9)=147
147 % 10 = 7
So 442850-39-7 is a valid CAS Registry Number.

442850-39-7Downstream Products

442850-39-7Relevant articles and documents

Preparation of β-amino-α-mercapto acids and amides: Stereocontrolled syntheses of 2′-sulfur analogues of the taxol C-13 side chain, both syn and anti S-acetyl-N-benzoyl-3-phenylisocysteine

Lee, Sang-Hyeup,Qi, Xin,Yoon, Juyoung,Nakamura, Kensuke,Lee, Yoon-Sik

, p. 2777 - 2787 (2007/10/03)

Stereoselective syntheses of both syn and anti S-acetyl-N-benzoyl-3-phenylisocysteine as coupling-ready reagents via the ring-opening reactions of trans- and cis-oxazoline-5-carboxylates with thiolacetic acid were demonstrated. In addition, we report upon ring-opening reactions of oxazoline-5-carboxamides. Ab initio molecular calculations were used to explain the different reactivities of these oxazolines with respect to the ring-opening reaction.

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