USD $2.00-10.00 / Metric Ton
USD $10.00-15.00 / Metric Ton
USD $5.00-9.00 / Metric Ton
USD $1.00-5.00 / Metric Ton
USD $22.00-25.00 / Metric Ton
USD $1.50-35.00 / Metric Ton
USD $30.00-100.00 / Metric Ton
USD $0.40-0.50 / 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-pro-oh
cas#: 15761-39-4
synonyms: boc-l-proline
molecular formula: c10h17no4
molecular weight: 215.25
specification:
item |
standard |
analysis data |
appearance |
white powder |
conforms |
specific rotation(a)d20 (c=<1 in> acetic acid) |
-60°± 2° |
-61o |
melting point (ºc) |
130ºc to 135 ºc |
133ºc |
loss on drying |
not more than 0.50% |
0.30% |
assay |
not less than 98.0% |
99.0% |
laboratory picture: