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250687-92-4

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250687-92-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 250687-92-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,6,8 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 250687-92:
(8*2)+(7*5)+(6*0)+(5*6)+(4*8)+(3*7)+(2*9)+(1*2)=154
154 % 10 = 4
So 250687-92-4 is a valid CAS Registry Number.

250687-92-4Relevant articles and documents

Convenient synthesis of cyclohexa[a]pyrrolo[2,1-b][3]benzazepine, a cephalotaxus alkaloid analogue

Tanaka, Hitoshi,Doi, Mitsunobu,Shimizu, Hiroshi,Etoh, Hideo

, p. 2415 - 2421 (2007/10/03)

Irradiation of N-(3-hydroxy-4-methoxyphenethyl)-3-(2-iodo-5- methoxyphenyl)propionamide (11) in methanol in the presence of sodium hydroxide furnished 3-hydroxy-2,12-dimethoxy-6,7,9,10-tetrahydrodibenz- [d,f]azecin-8(5H)-one (14) which was successfully le

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