MilliporeSigma
All Photos(1)

Documents

8.21027

Sigma-Aldrich

Phthaldialdehyde

for synthesis

Sign Into View Organizational & Contract Pricing

Select a Size

Synonym(s):
Phthaldialdehyde, OPA
Linear Formula:
C6H4-1,2-(CHO)2
CAS Number:
Molecular Weight:
134.13
MDL number:
EC Index Number:
211-402-2

Quality Level

Assay

≥97.5% (GC)

form

solid

autoignition temp.

480 °C

potency

178 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rat)

pH

7 (20 °C, 53 g/L in H2O)

bp

83-84 °C/1 hPa

mp

52-58 °C

transition temp

flash point 132 °C

solubility

53 g/L

density

1.13 g/cm3 at 20 °C

bulk density

530 kg/m3

storage temp.

2-30°C

InChI

1S/C8H6O2/c9-5-7-3-1-2-4-8(7)6-10/h1-6H

InChI key

ZWLUXSQADUDCSB-UHFFFAOYSA-N

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
1.11452P7914P0532
Phthaldialdehyde for synthesis

Sigma-Aldrich

8.21027

Phthaldialdehyde

Phthaldialdehyde for fluorometry

Millipore

1.11452

Phthaldialdehyde

form

solid

form

solid

form

-

form

-

bp

83-84 °C/1 hPa

bp

83-84 °C/1 hPa

bp

-

bp

-

mp

52-58 °C

mp

52-58 °C

mp

-

mp

-

solubility

53 g/L

solubility

53 g/L

solubility

-

solubility

-

density

1.13 g/cm3 at 20 °C

density

1.13 g/cm3 at 20 °C

density

-

density

-

Analysis Note

Assay (GC, area%): ≥ 97.5 % (a/a)
Melting range (lower value): ≥ 52 °C
Melting range (upper value): ≤ 56 °C
Identity (IR): passes test

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

269.6 °F - closed cup

Flash Point(C)

132 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 9

1 of 9

N-Acetyl-L-cysteine for biochemistry

Millipore

1.12422

N-Acetyl-L-cysteine

vibrant-m

GF98159787

Polyethersulfone

Terephthalaldehyde ReagentPlus®, 99%

Sigma-Aldrich

T2207

Terephthalaldehyde

Zinc phthalocyanine Dye content 97 %

Sigma-Aldrich

341169

Zinc phthalocyanine

Dansyl chloride BioReagent, suitable for amino acid labeling, powder and chunks, ≥99% (HPLC)

Sigma-Aldrich

D2625

Dansyl chloride

Fmoc chloride for HPLC derivatization, LiChropur™, ≥99.0% (HPLC)

Supelco

23186

Fmoc chloride

Boric acid ACS reagent, ≥99.5%

Sigma-Aldrich

B0394

Boric acid

2-Mercaptoethanol ≥99.0%

Sigma-Aldrich

M6250

2-Mercaptoethanol

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service