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145489-91-4

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145489-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145489-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,4,8 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 145489-91:
(8*1)+(7*4)+(6*5)+(5*4)+(4*8)+(3*9)+(2*9)+(1*1)=164
164 % 10 = 4
So 145489-91-4 is a valid CAS Registry Number.

145489-91-4Relevant articles and documents

Hypervalent iodine oxidation of α-substituted 2,4-dihydroxyacetophenones: Synthesis of novel o-iodophenoxy ethers via rearrangement of iodonium ylides

Prakash, Om,Sharma, Vijay,Tanwar, Madan P.

, p. 1191 - 1195 (2007/10/03)

α-Substituted 2,4-dihydroxyacetophenones (1a-1i) have been oxidized with phenyliodonium diacetate (PIDA) under three conditions (i) PIDA-KOH-MeOH (basic) at 0°C, (ii) PIDA-MeOH (neutral) at reflux temperature, and (iii) PIDA-AcOH (acidic) at reflux temper

Hypervalent iodine oxidation of some 2,4-dihydroxyacetophenones with iodobenzene diacetate potassium hydroxide in methanol : A novel route to 2-hydroxy-3-iodo-4-phenoxyacetophenones

Prakash, Om,Tanwar, Madan P.,Goyal, Seema,Pahuja, Saroj

, p. 6519 - 6522 (2007/10/02)

Hypervalent iodine oxidation of some 2,4-dihydroxyacetophenones (2a-d) with C6H5I (OAc)2 - KOH/MeOH providing a novel route to 2-hydroxy-3-iodo-4-phenoxyacetophenones (3a-d) via the rearrangement of iodonium ylides is repo

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