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345620-82-8

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345620-82-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 345620-82-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,5,6,2 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 345620-82:
(8*3)+(7*4)+(6*5)+(5*6)+(4*2)+(3*0)+(2*8)+(1*2)=138
138 % 10 = 8
So 345620-82-8 is a valid CAS Registry Number.

345620-82-8Relevant articles and documents

2-TRIMETHYLSILYLOXY-4-METHOXYFURAN: AN EXCELLENT SYNTHON FOR THE PRODUCTION OF 5-SUBSTITUTED TETRONATES (4-METHOXYBUTENOLIDES).

Pelter, Andrew,Al-Bayati, Redha,Lewis, Winne

, p. 353 - 356 (2007/10/02)

The preparation of 2-trimethylsilyloxy-4-methoxyfuran (6) is described.Under the influence of Lewis acids, this compound is substituted by a wide variety of reagents in a regiospecific fashion at C-5 to give substituted methyl tetronates.Its utility is ex

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