I'd like to have some qualified members comment on this. I don't know if associating DNP with explosives is accurate. I am no chemist. The information below seems to come directly from Wikipedia ( not always an accurate source.) I have also seen this information on other boards.
There is a chemist ( Michael Zumpano ) who is the OG in the world of gear, he was the brains behind Dan Duchanes books, he also went on to create Champion Nutrition. Mike says DNP is similar to Trinitrotoluene (TNT) but lacks a methyl group and one nitrogen on it's molecular structure, so ( in my opinion ) drawing inference or a parallel to DNP and explosives is liberal. It's like saying that although dianabol has a similar chemical structure to other steroids, all steroids are dianabol.
Now, this info came from MD's No Bull Radio. It had a three part interview with Zumpano and well worth listening to if you are interested in the history of the underground steroid movement.
http://www.musculardevelopment.com/content/view/1230/140/
Again I am no chemist and may be reading too much into these comments on explosives but I'd like to make things clear on this issue as this board has made it's name as the site for accurate information.
Respect,
Boo
Not trying to toot my own horn here, but I was able to find this info again on ATSDR's (Agency for toxic substances and disease registry)website. I believe (not 100% sure)DNP's weight loss properties were discovered when workers in dynamite factories were losing tremendous amounts of body weight by exposure to DNP through inhalation. Here is the link where I found the info below:
**broken link removed**
1.1 What are dinitrophenols?
Dinitrophenols are a class of synthetic organic chemicals that can exist in six individual forms. Dinitrophenols do not occur naturally in the environment. This profile mainly contains information on the most commercially important dinitrophenol, 2,4-dinitrophenol, which is called DNP in this document. Industries manufacture dinitrophenols. DNP is sold under many trade names, some are Caswell No. 392®, Sulfo Black B®, and Nitro Kleenup®. It is a yellow solid with no known smell. It dissolves slightly in water. DNP present in water and soil as a pollutant does not easily evaporate to air. The taste of DNP is not known. Commercial DNP is primarily used for making dyes, other organic chemicals, and wood preservatives. It is also used to make photographic developer,
explosives, and insect control substances.
Most of what we know about how DNP can affect your health comes from old reports by doctors who prescribed DNP to patients who wanted to lose weight. A person could even buy DNP at a drug store without a prescription. DNP has been banned by the U.S. Food and Drug Administration as a diet pill since 1938 because of the harmful effects that occurred in their patients, especially cataracts. Most of the ways that DNP can affect your health do not depend on how you are exposed or for how long. Some people who took DNP were harmed, while others were not, even though they took the same or higher doses. Although some people became ill after taking DNP for short periods, other people could take DNP for longer periods before becoming ill. This means that some people are more sensitive to the harmful effects of DNP than others. Brief or long-term exposure to DNP can cause increased basal metabolic rates (the rate that you use energy at complete rest); a feeling of warmth; sweating; weight loss; and increased heart rate, breathing rate, and body temperature. Some or all of these effects have occurred in some people after they swallowed doses as high as 46 milligrams of DNP per kilogram of their body weight per day (mg/kg/day) or doses as low as 1 mg/kg/day DNP. Some people who took doses of 2 mg/kg/day DNP or more for short or long periods experienced numbness in their hands and feet. Some people who swallowed doses of 6 mg DNP/kg/day for short periods or doses of 1 to 4 mg/kg/day DNP for long periods had a serious decrease of certain types of white blood cells that fight disease. Some people who swallowed doses of 1 to 4 mg/kg/day DNP for short or for long periods developed serious skin reactions that sometimes disappeared even while they were still being exposed. DNP caused cataracts in both eyes of some people who swallowed about 2 to 4 mg/kg/day DNP for short or long periods. This condition could lead to blindness in both eyes. If you breathe in, swallow, or have skin contact with large amounts of DNP, you may die. A few people have died after swallowing 3 to 46 mg/kg/day of DNP for short periods or doses as low as 1 to 4 mg/kg/day for long periods. Some workers who breathed in air containing 40 mg DNP per cubic meter of air (mg/m³) or more for long periods have also died.
The effects of DNP found in animals are similar to those in humans, except that the effects on feeling in the hands and feet, and on white blood cells were not found in animals. Cataracts also occurred in some types of animals that swallowed DNP.
We do not know whether DNP causes reproductive or birth defects or cancer in humans. One study in rats suggested that if DNP is swallowed during pregnancy or nursing, it may cause death in newborn babies. Two other studies in mice suggested that DNP did not have effects on the unborn infant. We do not know whether DNP causes cancer in animals.