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128228-60-4

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128228-60-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128228-60-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,2 and 8 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128228-60:
(8*1)+(7*2)+(6*8)+(5*2)+(4*2)+(3*8)+(2*6)+(1*0)=124
124 % 10 = 4
So 128228-60-4 is a valid CAS Registry Number.

128228-60-4Downstream Products

128228-60-4Relevant articles and documents

Two succinic acid derivatives of 2-ethyl-6-methyl-pyridin-3-ol

Lyakhov, Alexander S.,Ivashkevich, Ludmila S.,Survilo, Vladimir L.,Trukhachova, Tatjana V.

, p. o33-o36 (2012)

Crystals of bis(2-ethyl-3-hy-droxy-6-methyl-pyridinium) succin-ate-succin-ic acid (1/1), C8H12NO+·0.5C4H4O4 2-·0.5C4H6O4, (I), and 2-ethyl-3-hy-droxy-6-methyl-pyridinium hydrogen suc-cinate, C8H12NO+·C4H5O4 -, (II), were obtained by reaction of 2-ethyl-6-methyl-pyridin-3-ol with succinic acid. The succinate anion and succinic acid mol-ecule in (I) are located about centres of inversion. Inter-molecular O - H...O, N - H...O and C - H...O hydrogen bonds are responsible for the formation of a three-dimensional network in the crystal structure of (I) and a two-dimensional network in the crystal structure of (II). Both structures are additionally stabilized by π-π inter-actions between symmetry-related pyridine rings, forming a rod-like cationic arrangement for (I) and cationic dimers for (II).

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