Methylene Blue

Dexamethasone sodium phosphate


Methylene Blue paramete

CAS No.: 61-73-4
MF: 319.85
Place of Origin: China
Usage: Food Dyestuffs, Paper Dyestuffs, Textile Dyestuffs
Model Number: 61-73-4
Brand: Lookchemical
Appearance: Blue Powder
Purity: 99% Min
Packing: 25kg/drum
Molecular Weight: 319.85
EINECS No.: 200-515-2
Type: Basic dyes
Brand Name: Lookchemical
Product name: Methylene Blue
CAS: 61-73-4
Application: Textile Dyestuffs
Moq: 10kg
Application 2: Food Dyestuffs


Item Specifications Results
Appearance Dark green powder Dark green powder
Strength % 105-110 105
Shade Smilar to standard Smilar to standard
Content Water % 11-15 11.95
Insolubles ≤0.2 0.1

The test results conforms with enterprise standards.


1.Alkaline Hulan BB is mainly used for dyeing cotton, acrylic, hemp and silk, with poor fastness to sunlight and 2-3 grades of fastness. It is also used for dyeing paper, bamboo and wood, as well as for making ink and lake, and for dyeing biological and bacterial tissues.

2.It can be used for dyeing hemp, silk fabric, paper and bamboo and wood. It can also be used in the production of ink and color lake and biological, bacterial tissue dyeing and other aspects. It can with alkaline 5 bn purple and yellow dextrin in 78: if the proportion of composite alkali royal blue.

3.A nontoxic dye having an oxidized blue color and a reduced colorless appearance. In the staining of living yeast cells, due to the role of cell metabolism, the cells have a strong reduction ability, which can make Methylene blue change from the blue oxidation type to the colorless reduction Chemicalbook type. However, for dead or dead cells with weak metabolism effect, without such reduction ability or very weak reduction ability, methylene blue will become blue or light blue. This method can be used not only to observe the morphology of yeast cells, but also to distinguish dead cells from living cells.

Product service

1. Certificate Of Analysis (COA)

2. Material Safety Data Sheet (MSDS)

3. Route of synthesis (ROS)

4. Method of Aanlysis (MOA)

5. Nuclear Magnetic Resonance (NMR)

6. Packing pictures and loading video before loading

7. Free Sample

8. Factory audit


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.

After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Q1: Do you accept sample order?
A:  We will make samples before mass production, and after sample approved, we'll begin mass production. Doing 100% inspection during production, then do random inspection before packing.
Q2:  What is our advantage?
A : The series of natural extracted product are all self-developed, produced and tested. Mature production technology, strict cost control, and perfect quality assurance system, ensure the product stability and competitive price.
Q3: What’s your MOQ?
A :  Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q4: Do you supply product report?
A : Yes. We'll give you product analysis report before shipping.
 Q5: Is there a discount?
A :  Different quantity has different discount.
Q6: Can we visit your factory?
A :  Yes. Welcome to visit.
Q7: How to confirm the Product Quality before placing orders?
A :  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.


H302 (99.59%): Harmful if swallowed [Warning Acute toxicity, oral]

H318 (27.98%): Causes serious eye damage [Danger Serious eye damage/eye irritation]


The storehouse is ventilated and dry at low temperature


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.


Packing can be conducted according to customers' requirements.

Delivery detail

   [Delivery] 5 working days after payment.

Methylene Blue picture

Packaging and shipping

Honor Certificate

Professional team