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221108-44-7

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221108-44-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221108-44-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,1,0 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 221108-44:
(8*2)+(7*2)+(6*1)+(5*1)+(4*0)+(3*8)+(2*4)+(1*4)=77
77 % 10 = 7
So 221108-44-7 is a valid CAS Registry Number.

221108-44-7Downstream Products

221108-44-7Relevant articles and documents

New and efficient routes for the synthesis of murrayaquinone A and murrayanine

Bhosale, Shrikar M.,Momin, Aadil A.,Kusurkar, Radhika S.

, p. 6420 - 6426 (2012/08/28)

Three new routes were established for the synthesis of biologically active murrayaquinone A and a new method was developed for synthesis of murrayanine from the same starting material as 4-hydroxy carbazole. During the synthetic course a few novel observation were recorded, which include two one pot reaction sequences and C-N bond cleavage by sodium cyanoborohydride.

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