NS-127 EXP Green #5 is a very nice cobalt emerald green with a very complex color and chemistry. NS-127 EXP Green #5 was created by Draconis Glass. When they stopped making color rod we acquired the formulas. When working NS-127 EXP Green #5 you can achieve many different colors. When used in an oxidizing flame the color will stay a very vivid neon emerald green. Use in a less hot flame to achieve an opaque blue similar to NS-45 Blue Moon. NS-127 EXP Green #5 can also shift to a creamy white and lime green. NS-127 EXP Green #5 needs to be tried as it is hard to explain.