ChemicalBook > CAS DataBase List > DL-Mandelic acid

DL-Mandelic acid

Product Name
DL-Mandelic acid
CAS No.
90-64-2
Chemical Name
DL-Mandelic acid
Synonyms
Mandelic;Amygdalinic acid;Mandellic acid;Amygdalic acid;Almond acid;Pregabalin EP Impurity C;alpha-Hydroxy-benzeneacetic acid;(2RS)-2-Hydroxy-2-phenylacetic Acid;-MandeL;Uromaline
CBNumber
CB3287471
Molecular Formula
C8H8O3
Formula Weight
152.15
MOL File
90-64-2.mol
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DL-Mandelic acid Property

Melting point:
119-121 °C (lit.)
Boiling point:
214.6°C (rough estimate)
alpha 
[α]D20 -0.5～+0.5° (c=2, H2O)
Density 
1.30
vapor pressure 
0.01 Pa (50 °C)
refractive index 
1.4810 (estimate)
storage temp. 
Store below +30°C.
solubility 
139g/l
form 
Crystals or Crystalline Powder
pka
3.85(at 25℃)
color 
White
PH
2.3 (10g/l, H2O)
Odor
faint odor
optical activity
[α]/D 0±1°, c = 5 in H2O
Water Solubility 
150 g/L (20 ºC)
Sensitive 
Light Sensitive
Merck 
14,5717
BRN 
510011
InChIKey
IWYDHOAUDWTVEP-UHFFFAOYSA-N
LogP
0.5 at 23℃
CAS DataBase Reference
90-64-2(CAS DataBase Reference)
NIST Chemistry Reference
Benzeneacetic acid, «alpha»-hydroxy-(90-64-2)
EPA Substance Registry System
Mandelic acid (90-64-2)
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Safety

Hazard Codes 
Xn,Xi
Risk Statements 
36/37/38-22
Safety Statements 
22-24/25-37/39-26-36
WGK Germany 
3
RTECS 
OO6300000
TSCA 
Yes
HS Code 
29181990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H318Causes serious eye damage

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PHR3199
Product name
Mandelic Acid
Purity
pharmaceutical secondary standard, certified reference material
Packaging
1G
Price
$173
Updated
2024/03/01
Sigma-Aldrich
Product number
8.06913
Product name
DL-Mandelic Acid
Purity
forsynthesis
Packaging
250g
Price
$57.1
Updated
2024/03/01
Sigma-Aldrich
Product number
8.06913
Product name
DL-Mandelic Acid
Purity
forsynthesis
Packaging
1kg
Price
$178
Updated
2024/03/01
Sigma-Aldrich
Product number
8.06913
Product name
DL-Mandelic Acid
Purity
forsynthesis
Packaging
5kg
Price
$444
Updated
2024/03/01
Sigma-Aldrich
Product number
41605
Product name
DL-Mandelic acid
Purity
analytical standard
Packaging
100mg
Price
$116
Updated
2024/03/01
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DL-Mandelic acid Chemical Properties,Usage,Production

Chemical Properties

White rhomboidal crystals, decompose when exposed to light. Soluble in ether and isopropanol, soluble in ethanol and water; R-form melting point is 133°C, [α]-159.73° (ethanol), gradually racemic at 160°C. S-form melting point is 133.8°C, [α]+156.57° (water).

Uses

Organic synthesis, medicine (urinary antiseptic).

Uses

DL-Mandelic acid may be used as an analytical reference standard for the determination of DL-mandelic acid in:
Human urine samples by high performance liquid chromatography (HPLC) equipped with ultraviolet (UV) detector.
Rat urine samples by gas chromatography-mass spectrometry (GC-MS) with selected ion monitoring (SIM) detection.

Preparation

Mandelic acid can be prepared by the hydrolysis of amygdalin with sulfuric acid or of mandelonitrile with hydrochloric acid. The mandelonitrile can be prepared by the action of hydrocyanic acid on benzaldehyde, and by the action of sodium or potassium cyanide on the sodium bisulfite addition product of benzaldehyde. The procedure described differs from earlier methods in that the sodium bisulfite addition compound of benzaldehyde is prepared in the presence of sodium cyanide and the nitrile is formed immediately.
synthesis of mandelic acid

Definition

ChEBI: Mandelic acid is a 2-hydroxy monocarboxylic acid that is acetic acid in which two of the methyl hydrogens are substituted by phenyl and hydroxyl groups. It has a role as an antibacterial agent and a human xenobiotic metabolite. It is a 2-hydroxy monocarboxylic acid and a member of benzenes. It derives from an acetic acid. It is a conjugate acid of a mandelate. Exists in stereoisomeric forms. The properties are those of the dl-form.

General Description

DL-Mandelic acid is an aromatic hydrocarbon metabolite of styrene.

Hazard

Toxic by ingestion.

Flammability and Explosibility

Not classified

Safety Profile

Poison by intramuscular route. Moderately toxic by ingestion. Continued absorption can cause kidney irritation. When heated to decomposition it emits acrid smoke and irritating fumes.

DL-Mandelic acid Preparation Products And Raw materials

Raw materials

Benzoylformic acid Acetone Glycolonitrile Sodium bisulfite Sodium cyanide Benzaldehyde 2-Chloroacetophenone

Preparation Products

DL-alpha-Methoxyphenylacetic acid 1,2-Phenylenediacetic acid Pemoline
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DL-Mandelic acid Suppliers

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View Lastest Price from DL-Mandelic acid manufacturers

Hebei Longbang Technology Co., Ltd
Product
DL-Mandelic acid 90-64-2
Price
US $7.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20TONS
Release date
2024-05-17
Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Mandelic Acid 90-64-2
Price
US $120.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-17
HebeiShuoshengImportandExportco.,Ltd
Product
DL-Mandelic acid 90-64-2
Price
US $6.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
2000KG/Month
Release date
2024-08-01

90-64-2, DL-Mandelic acid Related Search:

2-Hydroxyphenylacetic acid 4-Methoxyphenylacetic acid Mandelic acid Folic acid α-Lipoic Acid Glycine Amygdalin Ethyl 2-(Chlorosulfonyl)acetate CHLOROPHOSPHONAZO III 4-Hydroxyphenylacetic acid Phenethyl phenylacetate 3-Hydroxyphenylacetic acid 2-Methylphenylacetic acid Citric acid DL-Mandelic acid 2-Hexenamide, 2-cyano-5-methyl- Hexanoic acid,3-(aminomethyl)-5-methyl-, (3R)- 2,4-Dicyano-3-(2-Methylpropyl)-pentanediaMide

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  • DL-MANDELIC ACID 98%
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