MilliporeSigma
All Photos(1)

Documents

440736

Sigma-Aldrich

4-Thiouracil

97%

Sign Into View Organizational & Contract Pricing

Synonym(s):
2-Hydroxy-4-mercaptopyrimidine
Empirical Formula (Hill Notation):
C4H4N2OS
CAS Number:
Molecular Weight:
128.15
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

form

powder

mp

295 °C (dec.) (lit.)

solubility

1 M NaOH: soluble 50 mg/mL

SMILES string

Oc1nccc(S)n1

InChI

1S/C4H4N2OS/c7-4-5-2-1-3(8)6-4/h1-2H,(H2,5,6,7,8)

InChI key

OVONXEQGWXGFJD-UHFFFAOYSA-N

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
T7750C9375652636
4-Thiouracil 97%

440736

4-Thiouracil

2-Thiouracil ≥99%

T7750

2-Thiouracil

5-Carboxy-2-thiouracil

C9375

5-Carboxy-2-thiouracil

Methyl 4-iodosalicylate 97%

652636

Methyl 4-iodosalicylate

solubility

1 M NaOH: soluble 50 mg/mL

solubility

1 M NaOH: 5 mg/mL, clear to very slightly hazy, 1 M NaOH: 50 mg/mL, colorless to faintly yellow

solubility

1 M NaOH: 50 mg/mL, clear, colorless to faintly yellow

solubility

-

form

powder

form

powder

form

powder

form

solid

mp

295 °C (dec.) (lit.)

mp

>300 °C (lit.)

mp

-

mp

69-73 °C

Application

4-Thiouracil is suitable reagent employed in Schneider′s media for the embryos during RNA extraction. It may be employed as reagent for the Northwestern blotting technique.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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 6

1 of 6

Qing S Wang et al.
RNA (New York, N.Y.), 11(4), 404-411 (2005-02-11)
Isolating the core functional elements of an RNA is normally performed during the characterization of a new RNA in order to simplify further biochemical analysis. The removal of extraneous sequence is challenging and can lead to biases that result from
Linda Warfield et al.
Molecular cell, 68(1), 118-129 (2017-09-19)
Previous studies suggested that expression of most yeast mRNAs is dominated by either transcription factor TFIID or SAGA. We re-examined the role of TFIID by rapid depletion of S. cerevisiae TFIID subunits and measurement of changes in nascent transcription. We find that
Xiaoran Zou et al.
The journal of physical chemistry. B, 118(22), 5864-5872 (2014-05-14)
Intensified research interests are posed with the thionucleobase 4-thiouracil (4-TU), due to its important biological function as site-specific photoprobe to detect RNA structures and nucleic acid-nucleic acid contacts. By means of time-resolved IR spectroscopy and density functional theory (DFT) studies
Artem Khvorostov et al.
Photochemistry and photobiology, 81(5), 1205-1211 (2005-06-23)
Unimolecular phototautomeric reactions in 4-thiouracil, 1-methyl-4-thiouracil and 6-aza-4-thiouracil were studied using the matrix-isolation technique combined with infrared absorption spectroscopy. For monomers of these compounds, isolated in solid argon at 10 K, an intramolecular proton-transfer photoreaction was observed. Upon UV (lambda
P J Unrau et al.
Nature, 395(6699), 260-263 (1998-09-29)
The 'RNA world' hypothesis proposes that early life developed by making use of RNA molecules, rather than proteins, to catalyse the synthesis of important biological molecules. It is thought, however, that the nucleotides constituting RNA were scarce on early Earth.

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