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50386-17-9

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50386-17-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 50386-17-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,3,8 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 50386-17:
(7*5)+(6*0)+(5*3)+(4*8)+(3*6)+(2*1)+(1*7)=109
109 % 10 = 9
So 50386-17-9 is a valid CAS Registry Number.

50386-17-9Relevant articles and documents

Heterocycles: Part 7 - Synthesis of acetyl hydroxy-2,2-dimethylchromans

Vijayalakshmi, C. S.,Shanmugam, P.,Prasad, K. J. Rajendra

, p. 510 - 511 (2007/10/02)

Synthesis of acetyl hydroxy-2,2-dimethylchromans by two methods namely photo-Fries rearrangement of acetoxy-2,2-dimethylchromans (UV light, 253.7 nm) and Friedel-Crafts acetylation of hydroxy-2,2-dimethylchromans with gl. acetic acid using AlCl3/POCl3 has been described.

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