105-61-3 Usage
Uses
N-Carbamoylmaleamic acid, is used as a pharamceutical intermediate.
Purification Methods
Crystallise the acid from hot water. Dry it at ~100o over H2SO4. [Batt et al. J Am Chem Soc 76 3663 1954.]
Check Digit Verification of cas no
The CAS Registry Mumber 105-61-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,0 and 5 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 105-61:
(5*1)+(4*0)+(3*5)+(2*6)+(1*1)=33
33 % 10 = 3
So 105-61-3 is a valid CAS Registry Number.
InChI:InChI=1/C5H6N2O4/c6-5(11)7-3(8)1-2-4(9)10/h1-2H,(H,9,10)(H3,6,7,8,11)/p-1
105-61-3Relevant articles and documents
PROCESS FOR STRAIGHTENING KERATIN FIBRES WITH A HEATING MEANS AND DENATURING AGENTS
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, (2010/03/02)
The invention relates to a process for straightening keratin fibres, comprising: (i) a step in which a straightening composition containing at least two denaturing agents is applied to the keratin fibres, (ii) a step in which the temperature of the keratin fibres is raised, using a heating means, to a temperature of between 110 and 250° C.