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1171875-29-8

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1171875-29-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1171875-29-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,1,8,7 and 5 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1171875-29:
(9*1)+(8*1)+(7*7)+(6*1)+(5*8)+(4*7)+(3*5)+(2*2)+(1*9)=168
168 % 10 = 8
So 1171875-29-8 is a valid CAS Registry Number.

1171875-29-8Upstream product

1171875-29-8Downstream Products

1171875-29-8Relevant academic research and scientific papers

First total synthesis of (+)-11-hydroxyerythratidine

Onoda, Toshio,Takikawa, Yosuke,Fujimoto, Takashi,Yasui, Yoshizumi,Suzuki, Keisuke,Matsumoto, Takashi

scheme or table, p. 1041 - 1046 (2009/09/30)

The first total synthesis of (+)-11-hydroxyerythratidine is described. The strategy is featured by a highly stereoselective construction of the C(5) spiro center via the Lewis acid promoted cyclization of ortho-quinone acetal, derived from di-ortho-substituted biphenyl 9 with a chiral center at the side chain. Georg Thieme Verlag Stuttgart.

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