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1191256-01-5

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1191256-01-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1191256-01-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,1,2,5 and 6 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1191256-01:
(9*1)+(8*1)+(7*9)+(6*1)+(5*2)+(4*5)+(3*6)+(2*0)+(1*1)=135
135 % 10 = 5
So 1191256-01-5 is a valid CAS Registry Number.

1191256-01-5Downstream Products

1191256-01-5Relevant academic research and scientific papers

Second generation synthesis of C27 - C35 Building block of E7389, a synthetic halichondrin analogue

Yang, Yu-Rong,Kim, Dae-Shik,Kishi, Yoshito

supporting information; experimental part, p. 4516 - 4519 (2009/12/07)

A practical method is reported to synthesize E7389 C27-C35 building block 13 from 1,2-O-isopropylidene-α-D-5-deoxyglucurono-6,3-lactone (3). This synthesis relies on two key processes: (1) C34/C35-diol is introduced via asymmetric dihydroxylation with dr

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