USD $1.80-2.50 / Kilogram
USD $100.00-150.00 / Kilogram
USD $0.40-1.00 / Metric Ton
USD $100.00-150.00 / Kilogram
USD $32.00-34.00 / Metric Ton
sichuan tongsheng is the most strongest manufacturer and exporter of amino acids and their derivatives in china, we have the best quality and price. guarantee high quality, competive price and reliable service.
we fully compliance with iso9001:2008, production and quality management following gmp standards, production plant constructed in accordance with gmp standards. quality control conforms to the standards of pharmaceutical-food cp grade and japan ajinomoto aji, american usp and reagent grade br.
iso9001: 2008 certification:
product name: boc-pyr-ome
cas#: 108963-96-8
synonyms: boc-l-pyroglutamic acid methyl ester
molecular formula: c11h17no5
molecular weight: 243.3
specifications:
items |
standard |
analysis data |
appearance |
white crystalline powder |
conforms |
specific rotation [20/d] (c=<1.039 in> chcl3) |
-31.5°+ 2° |
-29.8° |
melting point (celsius degree) |
69℃ to 71℃ |
70℃ |
loss on drying |
not more than 0.50% |
0.35% |
purity |
not less than 98.0% |
99.4% |
application:
pharmaceutical intermediates.
laboratory picture: