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140628-15-5

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140628-15-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140628-15-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,6,2 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 140628-15:
(8*1)+(7*4)+(6*0)+(5*6)+(4*2)+(3*8)+(2*1)+(1*5)=105
105 % 10 = 5
So 140628-15-5 is a valid CAS Registry Number.

140628-15-5Downstream Products

140628-15-5Relevant articles and documents

AMINOMETHYLATION OF THIOUREA DERIVATIVES WITH N-METHYLENE-tert-BUTYLAMINE. II. N,N'- AND N,N,N'-SUBSTITUTED THIOUREAS

Kovalenko, A. L.,Tselinskii, I. V.

, p. 1728 - 1730 (2007/10/02)

Reactions of 1,3-disubstituted thioureas with N-methylene-tert-butylamine without solvent proceed by a reaction of the Mannich type with formation of 1-R1-3-R2-5-tert-butyl-3,4,5,6-tetrahydro-1,3,5-triazine-2-thiones and tert-butylamine; 1,1,3-trisubstituted thioureas do not react with N-methylene-tert-butylamine as a consequence of steric hindrance, caused by the N-tert-butyl group, for the formation of the key iminium salt.

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