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Best Prix D Glucono Delta Lactone
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Meo Auto Parts Co.LTD
China - Hangzhou
Manufacturing and trade
Trade Capacity
Export Percentage
50-70%
Nearest Port
ningbo
Accepted Delivery Terms
FOB,CFR
Employees
101-200 people
Accepted Payment Currency
USD,EUR
Average Lead Time
15 Day(s)
Certifications
Product Specifications
--Product Description
Products Description
Best Prix D Glucono Delta Lactone
Gluconolactone is an ester formed by dehydration between the carboxyl group of gluconic acid and the hydroxyl group in the molecule, and the ester formed by dehydration between the hydroxyl group on the carbon atom at the 5th position (δ-position), called gluconic acid-δ- Lactone: The ester formed by dehydration between the properties of gluconolactone and the hydroxyl group on the 4th (γ-position) carbon atom is called glucono-γ-lactone. Crystal. It has a sweet taste different from gluconic acid. Decomposes at 153°C, [α]D20+61.7°(C=1). Gluconolactone is easily soluble in water, hydrolyzed into gluconic acid in an aqueous solution, and forms an equilibrium mixture with δ and γ lactones:
Test items | Test method | Standard requirements | detection result |
Sensory test | GB7657 | Colorless or white dry loose grain or crystalline powder | Conform |
Assay% | GB7657 | ≥99.0 | 99.63 |
% Loss on drying | GB5009.3 | ≤1.0 | 0.12 |
% Reducing substance | GB7657 | ≤0.5 | ＜0.5 |
% sulfate | GB7657 | ≤0.03 | ＜0.03 |
% chloride | GB7657 | ≤0.02 | ＜0.02 |
mg/kg Total arsenic | GB5009.11 | ≤3.0 | Not detected |
mg/kg lead | GB5009.12 | ≤2.0 | Not detected |
Optical rotation | ＋197°～＋201° | ||
Pb（mg/kg） | ≤0.5 | ||
As（mg/kg） | ≤0.5 | ||
Mold and yeast | ≤100 | ||
Total plate count | ≤100 | ||
Coliforms | Absent |
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Company Profile
Autumn Herb Biotech Co., Ltd. is a large-scale fine chemical and cosmetic raw material manufacturer integrating production and sales. It is headquartered in Xi'an City, Shaanxi Province. We has passed the ISO-9001 quality system certification. The products are exported to more than 30 countries and regions such as the United States, Russia, South Korea, Japan, India, Brazil, etc., and enjoy high reputation and popularity in the world. The company has a group of professionals engaged in chemical management, production, research and development, trade，the company strictly in accordance with ISO9001, ISO14001, GB/T- The requirements of 28001 are to supervise, control and operate all aspects of production in order to achieve the perfect combination of social responsibility, employee health, environmental protection and product quality.
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FAQ
Q1. Can you give me a discount price? |
Surely,It depend on your quantity. |
Q2. How to Control the quality? |
1.High grade clean workshop. |
2.Inspection equipment with instruments of HPLC,GC, etc, R&D and QC for testing each batch. |
3.Third part test agency for testing heavy metals,pesticide residues,allergen etc. |
Q3. How to make order & payment? |
You can order via Alibaba Trade assurance.We can accept payment by T/T,Western Union,Paypal. |
Q4. Could we can get some sample for testing before our purchasing? |
Free samples is available,but freight charges will be at your account and the charges will be return toyou or deduct from your order in the future. |
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