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70122-99-5

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70122-99-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70122-99-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,1,2 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 70122-99:
(7*7)+(6*0)+(5*1)+(4*2)+(3*2)+(2*9)+(1*9)=95
95 % 10 = 5
So 70122-99-5 is a valid CAS Registry Number.

70122-99-5Relevant articles and documents

SYNTHESIS AND SOME PROPERTIES OF 1,1-DI(ALKOXYCARBONYLAMINO)-2,2-DIHALOGENO- AND 1,1-DI(ALKOXYCARBONYLAMINO)-2,2,2-TRIHALOGENOETHANES

Bal'on, Ya. G.,Smirnov, V. A.

, p. 2249 - 2254 (2007/10/02)

1,1-Di(alkoxycarbonylamino)-2,2,2-trihalogenoethanes were obtained by heating trihalogenoacetaldehydes or their hydrates with urethanes in a ratio of 1:2 in the presence of catalytic amounts of concentrated sulfuric acid.The products were reduced selectively with aluminum amalgam in 90percent alcohol to 1,1-di(alkoxycarbonylamino)-2,2-dihalogenoethanes.Compounds of both types react smoothly with benzene and its homologs in the presence of concentrated sulfuric acid and give 1-alkoxycarbonylamino-1-aryl-2,2-dihalogeno- and 1-alkoxycarbonylamino-1-aryl-2,2,2-trihalogenoethanes respectively.In an alkaline medium the latter are cleaved to aryloxyacetic acid, and with phosphorus pentachloride they form 1-aryl-2,2-dihalogeno- and 1-aryl-2,2,2-trihalogenoethyl isocyanates.

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