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55138-41-5

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55138-41-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55138-41-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,1,3 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55138-41:
(7*5)+(6*5)+(5*1)+(4*3)+(3*8)+(2*4)+(1*1)=115
115 % 10 = 5
So 55138-41-5 is a valid CAS Registry Number.

55138-41-5Relevant articles and documents

Porous calcium hydroxyapatite as an efficient catalyst for synthesis of pyrazolines via 1,3-dipolar cycoloaddition under solvent-free microwave irradiation

Atir,Mallouk,Bougrin,Soufiaoui,Laghzizil

, p. 111 - 120 (2007/10/03)

Adsorbed on porous calcium hydroxyapatite, 1,3-dipolar cycloaddition of diphenylnitrilimine on olefins is readily catalyzed under solvent-free microwaves irradiation. The pyrazolines are obtained in few minutes with high yields. Specific surface of porous

Regioselectivity in the Reactions of Benzonitrile N-Phenylimide and Some Benzonitrile N-Oxides with α,β-Unsaturated Ketones

Bianchi, Giorgio,Gandolfi, Remo,Micheli, Carlo De

, p. 135 - 158 (2007/10/02)

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