A5387012
L-(-)-Malic acid , 98% , 97-67-6
Synonym(s):
(S)-(−)-2-Hydroxysuccinic acid;(S)-(-)-Malic acid;L -Hydroxybutanedioic acid;L-(-)-Malic acid
CAS NO.：97-67-6
Empirical Formula: C4H6O5
Molecular Weight: 134.09
MDL number: MFCD00064213
EINECS: 202-601-5
| Pack Size | Price | Stock | Quantity |
| 25G | RMB24.00 | In Stock |
|
| 100G | RMB31.20 | In Stock |
|
| 500G | RMB111.20 | In Stock |
|
| 2.5kg | RMB447.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 101-103 °C (lit.) |
| Boiling point: | 167.16°C (rough estimate) |
| alpha | -2 º (c=8.5, H2O) |
| Density | 1.60 |
| bulk density | 600kg/m3 |
| vapor pressure | 0Pa at 25℃ |
| refractive index | -6.5 ° (C=10, Acetone) |
| FEMA | 2655 | L-MALIC ACID |
| Flash point: | 220 °C |
| storage temp. | Store below +30°C. |
| solubility | H2O: 0.5 M at 20 °C, clear, colorless |
| form | Powder |
| Specific Gravity | 1.595 (20/4℃) |
| color | White |
| PH | 2.2 (10g/l, H2O, 20℃) |
| pka | (1) 3.46, (2) 5.10(at 25℃) |
| Odor | odorless |
| Odor Type | odorless |
| biological source | microbial |
| optical activity | [α]20/D 30±2°, c = 5.5% in pyridine |
| Water Solubility | soluble |
| JECFA Number | 619 |
| Merck | 14,5707 |
| BRN | 1723541 |
| InChIKey | BJEPYKJPYRNKOW-REOHCLBHSA-N |
| LogP | -1.68 |
| CAS DataBase Reference | 97-67-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Butanedioic acid, hydroxy-, (s)-(97-67-6) |
| EPA Substance Registry System | Butanedioic acid, 2-hydroxy-, (2S)- (97-67-6) |
Description and Uses
L-Malic acid is nearly odorless (sometimes a faint, acrid odor) with a tart, acidic taste. It is nonpungent. May be prepared by hydration of maleic acid; by fermentation from sugars.
The naturally occuring isomer is the L-form which has been found in apples and many other fruits and plants. Selective α-amino protecting reagent for amino acid derivatives. Versatile synthon for the preparation of chiral compounds including κ-opioid rece
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H319 |
| Precautionary statements | P264-P280-P305+P351+P338-P337+P313 |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36-37/39 |
| WGK Germany | 3 |
| RTECS | ON7175000 |
| TSCA | Yes |
| HS Code | 29181980 |
