Product Description
L-Pyroglutamic acid CAS 98-79-3
| L-Pyroglutamic acid Basic information |
| Product Name: |
L-Pyroglutamic acid |
| CAS: |
98-79-3 |
| MF: |
C5H7NO3 |
| MW: |
129.11 |
| EINECS: |
202-700-3 |
| Mol File: |
98-79-3.mol |
| L-Pyroglutamic acid Chemical Properties |
| Melting point |
160-163 °C(lit.) |
| alpha |
-27.5 º (c=10, 1 N NaOH) |
| Boiling point |
239.15°C (rough estimate) |
| density |
1.3816 (rough estimate) |
| vapor pressure |
0.002Pa at 25ºC |
| refractive index |
-10 ° (C=5, H2O) |
| storage temp. |
2-8°C |
| solubility |
H2O: 1 M at 20 °C, clear, colorless |
| form |
Crystalline Powder |
| pka |
3.32(at 25ºC) |
| color |
White to off-white |
| PH |
1.7 (50g/l, H2O, 20ºC) |
| Odor |
wh. crystal, odorless, sl. acidic taste |
| optical activity |
[α]20/D 10.5±1°, c = 5% in H2O |
| Water Solubility |
10-15 g/100 mL (20 ºC) |
| BRN |
82132 |
| Stability: |
Stable. Incompatible with bases, acids, strong oxidizing agents. |
| LogP |
-1.233 at 20ºC |
| CAS DataBase Reference |
98-79-3(CAS DataBase Reference) |
| NIST Chemistry Reference |
Pidolic acid(98-79-3) |
| EPA Substance Registry System |
5-Oxo-L-proline (98-79-3) |
COA
Appearance |
White to off-white microcrystalline powder |
White to off-white microcrystalline powder |
| m.p |
160 -162 ºC |
(Eligibility) |
| Assay |
99%(min) |
99.3% |
| Chloride(CI) |
<=0.020% |
0.005% |
| Sulfate(SO4) |
<=0.020% |
0.003% |
| Ammonium(NH4) |
<=0.020% |
0.004% |
| Iron (Fe) |
<=10ppm |
(Eligibility) |
| Heavy metals(pb) |
<=10ppm |
(Eligibility) |
| Arsenic(AS2O3) |
<=1ppm |
(Eligibility) |
| Other amino acids |
<=0.02% |
(Eligibility) |
| Loss on drying |
<=0.50% |
0.2% |
| Residue on ignition |
<=0.20% |
(Eligibility) |
| Specific Rotation[20/D] |
-10.8~ -12.5° (C=2 in H2O) |
-12.0° (C=2 in H2O) |
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About us
1.When was Future chemical incorporated?
2011, Shandong, China
2.What are some Current Accreditations and Certifications?
ISO9001; HALA; Dangerous Chemicals Business License
3.List all countries to which you currently supply product :
Europe, America, Middle East, Asia.
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First, we put ourselves in their shoes and listen to what has transpired. Second, we attempt to figure out and rectify how the problem occurred. Third, we will do our best to resolve the problem, and assure them that this issue will not be repeated. Finally, the customer will always be treated with dignity and respect, provided an apology, and a thank you for their business.
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Yes!
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We will conduct sample inspection before each batch of products is shipped.
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Very High degree of reliability and predictability, well above average service. Our customers have told us we are very easy to work with, which is highly unique these days!
8.Can potential customers inspect the factory?
Yes!
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Product details pages for some products can be downloaded. For other products, please contact us through the inquiry form to obtain.
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We can provide samples of any quantity, and the sample fee will be deducted from the second bulk purchase.
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Please fill in the product and quantity you need in the inquiry form, and we will send a quotation in the form of a list to your email
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1.Delivery time
Shipment will be made within one week after order confirmation and payment.
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Yes, for Fedex or DHL, we can use your designated shipping service account ID. However, in this case, additional identification fees or handling fees may be added.
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