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67710-40-1

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67710-40-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67710-40-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,7,1 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 67710-40:
(7*6)+(6*7)+(5*7)+(4*1)+(3*0)+(2*4)+(1*0)=131
131 % 10 = 1
So 67710-40-1 is a valid CAS Registry Number.

67710-40-1Downstream Products

67710-40-1Relevant articles and documents

Utilization of ultrasonic irradiation as green and effective one-pot protocol to prepare a novel series of bis-2-amino-1, 3, 4-oxa(thia)diazoles and bis-tetrazoles

Arafa, Wael Abdelgayed Ahmed,Abdel-Magied, Ahmed Fawzy

, p. 327 - 340 (2017/12/06)

In an effective and straightforward conversion, bis-semicarbazones and bis-thiosemicarbazones are transformed into a diversity of novel substituted bis-2-amino-1, 3, 4-oxadiazoles and bis-2-amino-1, 3, 4-thiadiazoles, respectively under ultrasonic irradiation. Bis-tetrazoles are obtained from the dialdehydes by sequential reaction with hydroxylamine hydrochloride, phosphorus pentoxide and sodium azide without isolation of the intermediates oximes and nitriles. All the reactions proceed cleanly and smoothly under mild conditions, with short reaction times and broad functional groups possibility. No side reactions were observed.

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