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124737

Glycolic acid

99%, solid, ReagentPlus®

Synonym(s):

Hydroxyacetic acid

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25 g
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$65.90
100 g
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$116.00
500 g
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$262.00
12 kg
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$1,520.00

About This Item

Linear Formula:
HOCH2COOH
CAS Number:
Molecular Weight:
76.05
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
39021303
UNSPSC Code:
12352100
EC Number:
201-180-5
MDL number:
Beilstein/REAXYS Number:
1209322
Assay:
99%
Form:
solid

$65.90


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Product Name

Glycolic acid, ReagentPlus®, 99%

vapor pressure

0.00093 hPa ( 25 °C)

Quality Segment

product line

ReagentPlus®

assay

99%

form

solid

pH

2 (20 °C, 50 g/L)

bp

(169 °C 336 °F at 998 hPa)

mp

75-80 °C (lit.)

solubility

H2O: 50 mg/mL, clear, colorless

density

(1,26 g/cm3 at 20 °C - OECD Test Guideline 109)

functional group

carboxylic acid, hydroxyl

SMILES string

OCC(O)=O

InChI

1S/C2H4O3/c3-1-2(4)5/h3H,1H2,(H,4,5)

InChI key

AEMRFAOFKBGASW-UHFFFAOYSA-N

General description

Glycolic acid (Hydroxyacetic acid) is an α-hydroxy acid. Glycolic acid solutions having concentration of 70% and pH range of 0.08 to 2.75 are widely employed as superficial chemical peeling agents.[1] Various oligomers or polymers of lactic and/or glycolic acid (low molecular weight) have been prepared.[2] Glycolic acid can be determined via plant tissue coupled flow injection chemiluminescence biosensors, which can be used both as a plant-tissue based biosensor and chemiluminescence flow sensor.

Application

Glycolic acid (Hydroxyacetic acid) has been used in the preparation of PLGA-PEG-PLGA copolymer (PLGA = poly(lactic/glycolic, PEG = polyethylene glycol).[3]

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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This Item
798053PHR14271.04106
description

ReagentPlus®, 99%

description

anhydrous, free-flowing, Redi-Dri, ReagentPlus®, 99%

description

Pharmaceutical Secondary Standard; Certified Reference Material

description

for analysis EMSURE® Reag. Ph Eur

assay

99%

assay

99%

assay

-

assay

≥99.5% (acidimetric)

Quality Level

200

Quality Level

100

Quality Level

300

Quality Level

300

form

solid

form

crystals

form

-

form

solid

solubility

H2O: 50 mg/mL, clear, colorless

solubility

-

solubility

-

solubility

water: soluble at 20 °C

pH

2 (20 °C, 50 g/L)

pH

-

pH

-

pH

2 (20 °C, 50 g/L in H2O)

vapor pressure

0.00093 hPa ( 25 °C)

vapor pressure

-

vapor pressure

-

vapor pressure

10.8 hPa ( 80 °C)


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pictograms

CorrosionExclamation mark

signalword

Danger

hcodes

Hazard Classifications

Acute Tox. 4 Inhalation - Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

flash_point_f

>572.0 °F - (decomposition)

flash_point_c

> 300 °C - (decomposition)

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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