MilliporeSigma
All Photos(1)

Documents

8.14223

Sigma-Aldrich

Imidazole

for synthesis

Sign Into View Organizational & Contract Pricing

Select a Size

Synonym(s):
Imidazole, Glyoxaline, Iminazole
Empirical Formula (Hill Notation):
C3H4N2
CAS Number:
Molecular Weight:
68.08
MDL number:
EC Index Number:
206-019-2

vapor pressure

0.003 hPa ( 20 °C)

Quality Level

Assay

≥99% (GC)

form

solid

autoignition temp.

480 °C

potency

970 mg/kg LD50, oral (Rat)

pH

10.5 (20 °C, 67 g/L in H2O)

bp

256 °C/1013 hPa

mp

90 °C

transition temp

flash point 145 °C

solubility

633 g/L

density

1.233 g/cm3 at 20 °C

bulk density

500‑600 kg/m3

storage temp.

2-30°C

InChI

1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)

InChI key

RAXXELZNTBOGNW-UHFFFAOYSA-N

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
1.047161.3709868268
Imidazole for synthesis

Sigma-Aldrich

8.14223

Imidazole

-
Imidazole buffer substance ACS

Millipore

1.04716

Imidazole

-
Imidazole EMPROVE® EXPERT ACS

SAFC

1.37098

Imidazole EMPROVE® EXPERT ACS

-
Imidazole buffer Solution BioUltra, 1 M in H2O

Sigma-Aldrich

68268

Imidazole buffer Solution

Premium Grade
assay

≥99% (GC)

assay

≥99% (perchloric acid titration)

assay

≥99% (perchloric acid titration)

assay

-

form

solid

form

solid

form

solid

form

liquid

autoignition temp.

480 °C

autoignition temp.

480 °C

autoignition temp.

480 °C

autoignition temp.

-

pH

10.5 (20 °C, 67 g/L in H2O)

pH

10.5 (20 °C, 67 g/L in H2O)

pH

10.5 (20 °C, 67 g/L in H2O)

pH

9.5±0.5

bp

256 °C/1013 hPa

bp

256 °C/1013 hPa

bp

256 °C/1013 hPa

bp

-

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Melting range (lower value): ≥ 88 °C
Melting range (upper value): ≤ 91 °C
Identity (IR): passes test

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

Flash Point(F)

293.0 °F - closed cup

Flash Point(C)

145 °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 7

1 of 7

Imidazole BioUltra, for molecular biology, ≥99.5% (GC)

Sigma-Aldrich

56748

Imidazole

Imidazole United States Pharmacopeia (USP) Reference Standard

USP

1336500

Imidazole

Imidazole Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1180

Imidazole

Imidazole ULTROL® Grade, ≥99% (1H-NMR), useful in pH range 6.2-7.8

Millipore

4015

Imidazole

Imidazole European Pharmacopoeia (EP) Reference Standard

I0086000

Imidazole

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