Difference between related substances & impurities
Answers were Sorted based on User's Feedback
Answer / b.gangatharan
Related substance means some process related compounds or by products and degradation compounds which are unwanted one produced during the manufacturing process of API products.if the related substance is very high means the reaction is not completed properly.the structure and properties of related substance partialy identical with main product.
Impurities means some unwanted substances produced due to contamination during manufacturing process.moreover the structure and properties of impurity will be completely different from the main product.
THANKS®ARDS,
B.GANGATHARAN,
CHENNAI.
| Is This Answer Correct ? | 15 Yes | 5 No |
Answer / pavana
Related compounds encompass all process-related substances as well as degradants that may be formed. Hence, impurities are a subset of related compounds. That is, all impurities are related compounds but not all related compounds are impurities.
| Is This Answer Correct ? | 2 Yes | 1 No |
why should we do limit of stray light in UV calibration and why should use potassium chloride
what is basc principle of the HPLC,IR,UV AND GC? what is difference between diffusion spectra and transmision spectra in IR?
1 Answers Cadila, Dr Reddys, GICC, Mylan, Sygene, Torrent Pharma, Zydus Cadila,
What is split ratio in Gc? Splitless? how requirr to select?
For Dissolution test why we are Performing 6 Bowls why not more.any were mentioned or in what basis we are performing? --------Veerabhadrarao.M
2 Answers Lee Pharma, Micro Labs,
what is diffrence between shelf life and expiry date?
what is separation techniques.
sop of a uv visible spectrophotometer double beam elico model
What is the difference between GSC & GLC?
How to calculate the signal to noise ratio.
Why are using in Hi,zero air, Ni gass are used GC
5 Answers Aurobindo, ELBS, Vimta Labs,
2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.
What is difference between silica used in TLC and HPLC column
4 Answers Cipla, Meghmani Organics,