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1649989-05-8

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1649989-05-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1649989-05-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,9,9,8 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1649989-05:
(9*1)+(8*6)+(7*4)+(6*9)+(5*9)+(4*8)+(3*9)+(2*0)+(1*5)=248
248 % 10 = 8
So 1649989-05-8 is a valid CAS Registry Number.

1649989-05-8Downstream Products

1649989-05-8Relevant articles and documents

Cyclization of 4-phenylthiosemicarbazide with phenacylbromide revisited. Formation of 1,3,4-thiadiazines and of isomeric 1,3-thiazoles

Pfeiffer, Wolf-Diethard,Junghans, Dieter,Saghyan, Ashot S.,Langer, Peter

, p. 1063 - 1067 (2014/08/05)

The cyclization of 4-phenylthiosemicarbazide with phenacylbromide, carried out in refluxing ethanol, afforded 1,3,4-thiadiazine 1 as the major product. In contrast to a previous report, 2-phenylimino-4-phenyl-2,3-dihydro-1,3-thiazol-3- amine (2) and not 2

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