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57440-49-0

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57440-49-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57440-49-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,4 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57440-49:
(7*5)+(6*7)+(5*4)+(4*4)+(3*0)+(2*4)+(1*9)=130
130 % 10 = 0
So 57440-49-0 is a valid CAS Registry Number.

57440-49-0Downstream Products

57440-49-0Relevant articles and documents

Preparation and application of guaifenazulene aldole dicondensate (by machine translation)

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Paragraph 0008; 0027; 0028, (2019/08/02)

The invention belongs to the field, and particularly relates to chemical preparation and application. When the problem group is subjected to chemical synthesis research on the skeleton by guaiguazulene and piperidine acid as raw materials, the derivative trans - 1, 2 - (1, 4 - diazulyl) ethene ene derivative of guaiabazulene is found. H1N1 Influenza virus testing, indicating that the compound is level, 25 mm in vitro antiviral activity superior to that of positive drug ribavirin. In vivo activity tests prove, the compound not only can inhibit the pneumonia symptoms, but also can reduce the titer, and the survival rate. , The survival rate, 5 mg/kg/day the lung virus titer . of virus-infected mice can be remarkably improved when stomach tube-like dosages are used for gastric lavage. In general, the activity of the compound is comparable, and the activity of the compound is comparable to that of oseltamivir. The utility model can be used for preparing antiviral drugs. The invention opens up a new way for deep research and development of new antiviral drugs, which is a new approach. (by machine translation)

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