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14100-81-3

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14100-81-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 14100-81-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,1,0 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 14100-81:
(7*1)+(6*4)+(5*1)+(4*0)+(3*0)+(2*8)+(1*1)=53
53 % 10 = 3
So 14100-81-3 is a valid CAS Registry Number.

14100-81-3Relevant articles and documents

POLYFLUORO-COMPOUNDS BASED ON THE CYCLOHEPTANE RING SYSTEM. PART 1. COMPOUNDS DERIVED FROM TRIDECAFLUOROCYCLOHEPTANE

Oliver, John A.,Stephens, Robert,Tatlow, John Colin

, p. 21 - 30 (2007/10/02)

Partial fluorination of cycloheptane by cobaltic fluoride gave a mixture of polyfluorides, of which tridecafluorocycloheptane was present in significant proportions.With aqueous alkali this afforded dodecafluorocycloheptene, which with lithium aluminium hydride gave 1H-undecafluorocyclohept-1-ene.Each of these cyclo-olefins was oxidised to decafluoropimelic acid.Methanol/KOH reacted with dodecafluorocycloheptene to give mainly 1-methoxy-undecafluorocyclohept-1-ene together with ca 15percent of the 3-methoxy-isomer, and some 1,2-dimethoxydecafluorocyclohept-1-ene.The 1-methoxy-1-ene and cobaltic fluoride gave 1-methoxy- and 1-fluoromethoxytridecafluorocycloheptanone: the former was demethylated by sulphuric acid to dodecafluorocycloheptanone.The dichloro-adduct of the perfluoro-olefin was reduced by lithium aluminium hydride to a complex mixture, from which 1H/2H- and 1H,2H-dodecafluorocycloheptane were isolated.

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