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Propidium iodide

Propidium iodide
Propidium iodide structure
Chemical Name:
Propidium iodide
PI;Nsc169541;PI solution;-Cellstain-Pi;PROPIDIUM IODIDE;Propidium diiodide;Propidium Iodide(PI);PROPIDIUM IODIDE 95%;-Cellstain-PiSolution;PROPIDIUM IODIDE 95-98%
Molecular Formula:
Formula Weight:
MOL File:

Propidium iodide Properties

Melting point:
220-225 °C (dec.)(lit.)
1.5072 (estimate)
storage temp. 
Difficult to mix.
Flaky Powder
Dark red
Water Solubility 
Soluble in water at 1mg/ml
Light Sensitive & Hygroscopic
493 nm, 535 nm
Biological Applications
Detecting nucleic acids,cancer cells,spores,activity of hydrolase,microorganisms; apoptosis assay; measuring beta-amyloid in Alzheimer’s disease (AD); treating diseases associated with androgens,cancer
Major Application
Electroluminescent displays; photoresists
CAS DataBase Reference
25535-16-4(CAS DataBase Reference)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi,Xn
Risk Statements  36/37/38-68-67-48/20/22-40-36/38-22-20-63
Safety Statements  26-36-22-36/37
WGK Germany  3
RTECS  SF7949600
HS Code  29339900
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501
Precautionary statements:
P201 Obtain special instructions before use.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P281 Use personal protective equipment as required.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P337+P313 IF eye irritation persists: Get medical advice/attention.
P405 Store locked up.

Propidium iodide price More Price(22)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 537059 Propidium Iodide Membrane impermeable DNA intercalator. 25535-16-4 50mg $89.6 2018-11-20 Buy
Sigma-Aldrich 537059 Propidium Iodide Membrane impermeable DNA intercalator. 25535-16-4 1gm $1340 2018-11-20 Buy
Alfa Aesar J66764 Propidium iodide 25535-16-4 100mg $139 2018-11-13 Buy
Alfa Aesar J66584 Propidium iodide, 1mg/ml aqueous soln. 25535-16-4 10ml $70.9 2018-11-13 Buy
Cayman Chemical 14289 Propidium Iodide ≥90% 25535-16-4 10mg $25 2018-11-13 Buy

Propidium iodide Chemical Properties,Uses,Production

Chemical Properties

Dark Red Solid


1 mg/mL in water


Propidium iodide is the most common red-fluorescent nuclear stain. It can also be excited using excitation filters appropriate for green-fluorescent dyes.




Propidium Iodide is a phenanthridine compound, a class of compounds with reported activity against several species of trypanosomes. Propidium iodide may be used in flow cytometry to evaluate cell viab ility when used with other dyes that stain viable cells or cells that are early in the apoptosis process.


Used as fluorescent stain for nucleic acids,and used in flow cytometry to evaluate cell viability

Purification Methods

It crystallises as red crystals from H2O containing a little KI. It fluoresces strongly with nucleic acids. [Watkins J Chem Soc 3064 1952, Beilstein 22 III/IV 5519.] TOXIC.

Propidium iodide Preparation Products And Raw materials

Raw materials

Preparation Products

Propidium iodide Suppliers

Global( 132)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32447 55
career henan chemical co
+86-371-86658258 CHINA 27142 58
Beijing OKA biological technology co., LTD 010-62971590; 62971690; 13718666987
010-62971690 China 9987 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
86-10-82849933; China 96815 76
INTATRADE GmbH +49 3493/605464
+49 3493/605470 Germany 3579 66
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
86-21-50328109 China 15881 69
BeiJing Hwrk Chemicals Limted 4006990298;010-57411839;0757-86311057;021-51691807
010-87653215;0757-86311057;021-55236763 China 14684 55
Shijiazhuang Sdyano Fine Chemical Co., Ltd. 13582355795
4000311741 China 3876 65
Beijing Ouhe Technology Co., Ltd +86-10-4006331231;+86-10-51280831;+86-10-82967028
+86-10-82967029 China 12495 60
Nanjing Chemlin Chemical Co., Ltd 025-83697070
+86-25-83453306 China 19977 64

View Lastest Price from Propidium iodide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-07-12 Propidium iodide
US $1.00 / KG 1KG 99% 25kg career henan chemical co

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