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18721-00-1

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18721-00-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18721-00-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,7,2 and 1 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 18721-00:
(7*1)+(6*8)+(5*7)+(4*2)+(3*1)+(2*0)+(1*0)=101
101 % 10 = 1
So 18721-00-1 is a valid CAS Registry Number.

18721-00-1Downstream Products

18721-00-1Relevant articles and documents

1-Amino-2-nitroethene derivatives in triflic acid: NMR study and triflates formation from their hydroxynitrilium ions

Coustard, Jean-Marie

, p. 5809 - 5820 (2007/10/03)

In triflic acid, 1-amino-2-nitroene derivatives undergo a C,O- diprotonation followed by the loss of (protonated) water, to form the >C=N 6H6. The resulting phenylated dications can be selectively reduced by NaBH4 at the iminium bond moiety. A protonated nitroso derivative was also isolated as its triflate salt. Structure, reactivity and mechanism of these reactions are discussed.

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