QueryCAT Logo
Search 5,000,000+ questions and answers.

Frequently Asked Questions

What are Labelled Compounds?

Frequently Asked Questions
Labelled compounds are compounds in which one or more of the atoms of a portion of the molecules is replaced with or substituted by a detectable quantity of stable or radioactive isotope(s) of the elements present in them chemically, enzymatically or biosynthetically, using suitable precursors, reagents, reaction schemes and procedures. The compounds can be labelled at the specific positions (1,2 or ?, ?, etc.) or generally labelled (denoted by 'G') or uniformly labelled (denoted by 'U').

What are the applications of Labelled Compounds?

Frequently Asked Questions
The isotopically labelled compounds have numerous and varied applications as tracers. They are versatile research tools, which can be advantageously employed in studies pertaining to chemistry, biology, medicine, agriculture, biotechnology and genetic engineering.

What is Labelled Seed?

Frequently Asked Questions of Seed Division
Answer 3: The seed notified under Section 5 of the Seeds Act, 1966, such seed sold in the market has to be labelled as prescribed under Section 6(a) and (b) of the Seeds Act Such seed is called Labelled Seed.

How can organic compounds affect me?

FAQs | Klaris
Organic contaminants in water originate from many different sources. They may be natural or man-made, including domestic sewage, urban run-off, industrial effluents, and farming. Man-made contaminants are particularly concerning as some of them cause serious adverse health effects, such as cancer and birth defects in animals and humans. In recent years persistent organic pollutants, also known as POPs, received much attention.

What is the purity of your compounds?

Frequently Asked Questions
The minimum purity of all compounds (externally acquired & in-house) is 90% minimum, and 95% on average. Purity is tested by NMR for 100% of the compounds (available free of charge upon request). LC-MS and TLC densitometry are used as supplementary controls.

What is the origin of the compounds?

Frequently Asked Questions
Compounds come from two main sources. The largest collection is in-house synthesized compounds. Exclusive Chemistry Ltd also has collection of compounds acquired externally from contract chemists and universities, located in Russia.

How many compounds should I test?

CCG - Learn More - FAQs | Life Sciences at Michigan here
The more compounds tested, the better chance you have of identifying the most potent and specific inhibitors. We have successfully identified hits from screens of 2-3,000 but we would recommend screening at least 10,000 compounds if you have sufficient material. Screens much smaller than that become inefficient in use of equipment and personnel time and we cannot provide much of a break in cost for very small screens.

What compounds do you monitor?

Lighthouse Worldwide Solutions ? Frequently Asked Questions
We are able to monitor all types of compounds. The most common chemicals that are monitored are as follows:

Is the nutritional value of wine labelled?

Vegan Wine Guide - Frequently Asked Questions
Sometimes - legislation differs from country to country. So number of calories and other information is often found on the label. Alcohol percentage is always labelled.

What are volatile organic compounds (VOCs)?

School Bus Diesel Emissions - Frequently Asked Questions
VOCs include gasoline, industrial chemicals such as benzene, solvents such as toluene and xylene, tetrachloroethylene, and perchloroethylene (the principal dry cleaning solvent). Many volatile organic compounds are hazardous air pollutants, and are known, or suspected, carcinogens. Benzene, for example, causes cancer.

What are the active compounds in Milk Thistle?

Amway - Malaysia Official Site
Milk Thistle fruit contains a mixture of flavonoids referred to as silymarin. The main constituents of silymarin are silybin, silydianin and silychristin. These flavonoids are believed to be the active compounds in Milk Thistle plant material.

So how do I work out how much salt is in a product if it is not labelled?

CASH - Consensus Action on Salt & Health
All labels give sodium and some now salt. To find out how much salt is in a given quantity of sodium, you have to multiply by 2.5.

Why is everything labelled as msql_bind?

SQL_BIND FAQ
The package name changed because the extensions were rewritten to not be msql-specific. The latest API allows admins to drop in support for their own databases.

Why are some shirts labelled 'Made in the USA'?

True North Gear Canadian Clothing: Frequently Asked Question...
The shirts labelled 'Made in the USA' are American Apparel brand and have been made in the USA as opposed to being made in China, Mexico or any other foreign country that is often used to make garments.

What types of compounds are priorities for breast cancer research at Silent Spring Institute?

Massachusetts Breast Cancer CoalitionMassachusetts Breast Ca...
SSI’s researchers focus on two types of chemicals: those that cause mammary tumors in animals and those that disrupt hormones. In particular, SSI’s scientists study chemicals in the environment that mimic estrogen; natural estrogen is a well-established breast cancer risk factor, therefore, synthetic chemicals that act like estrogen when in our bodies are potential sources of increased risk of breast cancer.

Can Research Diets add test compounds to diets?

Research Diets, Inc. - FAQ - Frequently Asked Questions
With precision and consistency, we can homogeneously blend virtually any test compound, medication, or nutrient into any commercial "chow," or into one of our more than 10,000 existing OpenSource Diets. This is effective for administering pharmaceuticals and conducting toxicity studies.

Do the compounds include utilities and furniture?

Jobs In Dubai - Fequently Asked Questions
Most people drive themselves around. You would have to transfer your current non-UAE driver license to a UAE driver's license. Some countries license is immediately transferable however be prepared that some nationalities may be required to sit a local driving test before receiving a UAE license. These are only issued once you have a residents visa, however temporary licenses are available and hire cars can be driven on international driving licenses.

Should we call pheromones chemical compounds?

Attracts 10s.
Yes we should. Scientific studies show pheromones are naturally occurring chemicals that can trigger out a range of biological actions among similar species members. With respect to the human beings, the main focus lies on the sexual messages sent by men and women through this means. For example Androstenol, the basic constituent of Attracts 10s, creates an aura of friendliness and warmth.

Can I know which compounds give no results?

Phenyx FAQ
Yes, go to the Management Console > Jobs Management > export/browse files. Select "unmatched fragment spectra list(mgf format)", select the corresponding job ID and click on the export button. A file (mgf format) is generated that only contains compounds for which there is no peptide interpretation.

Why aren't all the compounds identified? What other limitations are there?

Project Prospect FAQ
We can pick up most compounds missed by the text mining and add the information semi-automatically if ChemDraw files (or InChIs) are available, but where authors' ChemDraw is not available, it is currently unrealistic for us to add in all compounds by hand - but this process will improve with time as we get more original data from authors.
More Questions >>

© Copyright 2007-2013 QueryCAT
About • Webmasters • Contact