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19993-85-2

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19993-85-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19993-85-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,9 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19993-85:
(7*1)+(6*9)+(5*9)+(4*9)+(3*3)+(2*8)+(1*5)=172
172 % 10 = 2
So 19993-85-2 is a valid CAS Registry Number.

19993-85-2Relevant articles and documents

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Butler,R.N. et al.

, p. 2265 - 2268 (1971)

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Preparation and Spectroscopic Properties of 2-Benzothiazolyl Araldehyde Hydrazones

Hearn, Michael J.,Schulz, Jeannette,Sinha, Anvita,Collins, Pamela,Hallenbeck, Susan,Kustin, Michael

, p. 521 - 524 (2007/10/02)

Notwithstanding its tendency toward air oxidation in solution, 2-hydrazinobenzothiazole I reacted with aromatic aldehydes in ethanol to give the corresponding hydrazones III-XV in high yields and analytical purity.In related examples, acylation took place

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