Zhishang Chemical

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Zhishang Chemical

Vitamin B2 Powder CAS 83-88-5

Molecular Formula: C17H20N4O6

Formula Weight: 376.36

ZSpharmac: Vitamin B2 Powder  Supplement

Product Name: Vitamin B2 Powder
CAS No: 83-88-5
Purity: 99%

Basic Info

Product Name:Vitamin B2 Powder
Other Names:Riboflavin
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Pharmaceutical Raw Materials
Appearance:Yellow to Orange Powder
EINECS No.:201-507-1
Provide:Vitamin B2 Powder MSDS;
Vitamin B2 Powder COA

What is Vitamin B2 Powder ?

Vitamin B2 Powder, additionally known as riboflavin, is a water-soluble vitamin that the human body can not manufacture on its own as well as must be supplied by food. It is vital to keep the regular physical functions and also metabolic process of the human body. Vitamin B2 Powder participates in the regular growth of cells, promotes injury healing, strengthens nails and also hair, is also a vital component of coenzymes, participates in the synthesis and also metabolic process of the 3 nutrients of carbs, healthy proteins as well as fats, and takes part in the composition of red blood cells as well as iron transport, Helps protect against iron shortage anemia, as well as also has a specific antihypertensive effect.

Vitamin B2 Powder Properties:

Melting point 290 °C (dec.)(lit.)
alpha -135 º (c=5, 0.05 M NaOH)
Boiling point 504.93°C (rough estimate)
density 1.2112 (rough estimate)
refractive index -135 ° (C=0.5, JP Method)
Fp 9℃
storage temp. 2-8°C
solubility Very slightly soluble in water, practically insoluble in ethanol (96 per cent). Solutions deteriorate on exposure to light, especially in the presence of alkali. It shows polymorphism (5.9).
pka1.7(at 25℃)
form Powder
color Yellow to orange
OdorSlight odour
PH5.5-7.2 (0.07g/l, H2O, 20°C)
PH Range6
Water Solubility 0.07 g/L (20 ºC)


Vitamin B2 Powder Uses

  1. Vitamin B2 Powder it is easy to deal with conjunctivitis, angular stomatitis, glossitis and also other illness. my country states that it can be utilized for salt, and also the use amount is 100-150mg/ kg; the optimum usage amount in solid drinks is 10-13mg/ kg; the usage amount in baby food is 4-8mg/ kg; it is made use of in grains as well as their products. The dosage is 3.0 ~ 5.0 mg/kg; the dosage in drinking fluid and milk beverage is 1 ~ 2mg/kg.
  2. Vitamin B2 Powder is made use of to deal with riboflavin deficiency, conjunctivitis, trophic ulcers, systemic dietary disorders as well as other diseases.
  3. Vitamin B2 Powder is used in biochemical research study, photocatalyst for acrylamide gel polymerization, nutrient, and professional medicine.It is clinically made use of to treat angular stomatitis as well as glossitis caused by absence of vitamin B2.
  4. Vitamin B2 Powder exists in environment-friendly vegetables, soybeans, rice, wheat, yeast, liver, heart and milk. Riboflavin is distributed in numerous tissues in the body, comprising a coenzyme in the hydrogenation system in the body, participating in redox responses and also sending The role of hydrogen atoms. When riboflavin is deficient, it will certainly influence biological oxidation as well as create metabolic barriers, as well as the sores triggered mostly happen in the mouth, eyes, as well as outside genitalia, such as angular cheilitis, cheilitis, conjunctivitis, as well as scrotum. Riboflavin is mainly utilized as medication, food additive and feed additive. In medical element, it is utilized for compound vitamin or vitamin B2 prep work, and also made use of as yellow colorant for sugar-coated tablets and pills. When made use of as a food additive, on the one hand, it has the effect of strengthening nourishment, and on the other hand, it additionally works as a yellow coloring representative. The LD50 of rat intraperitoneal injection was

Analysis of Vitamin B2 Powder

FAO/WHO approach
Content analysis should be performed in indirect light. Take 65.0mg of the sample, put it into a 500ml brown volumetric flask, add 5ml of water, and after it is completely suspended and moistened, add 5ml of 2mol/L sodium hydroxide solution to dissolve it, immediately add 100ml of water and 2.5ml of glacial acetic acid, and then fix it with water. Capacity to 500.0m1. Take 20.0ml of this solution and put it into a 200ml brown volumetric flask, add 3.5ml of 1.4% (W/V) sodium acetate solution, and dilute to volume with water. The maximum absorbance (A) at 444 nm of this solution was measured. Take the specific absorbance as 328, calculate the content of C17H20N4O6
Content (%)=(A×5000/328×W)×1.367
In the formula, A——the absorbance of the sample solution at 444nm;
W——Sample size, g.
GB14752-93 method
Avoid light operation. Accurately weigh 150mg of the sample, put it in a beaker, add 2ml of glacial acetic acid and 200ml of water, boil it, let it cool, transfer it to a 500ml volumetric flask, and set the volume. Draw 5ml of this solution, transfer it into a 100ml volumetric flask, add 7ml of sodium acetate solution (3.5g/250ml), and make up to volume. The absorbance at 444nm was measured by spectrophotometry, with water as blank. Riboflavin/%=100×A/323×m1(1-x2)
In the formula, 323——the absorption coefficient of riboflavin (C17H22N4O6) E1cm1%
A——The absorbance of the sample solution at 444nm;
m1——sample size, g;
x2: – loss on drying, %.

Vitamin B2 Powder Food Sources and Usage Limits

Food Sources:

The human body cannot synthesize Vitamin B2 Powder by itself, and needs to be taken from food. Foods such as milk, cheese, lean meat, eggs, green leafy vegetables, whole grains, and animal liver are rich in Vitamin B2 Powder. Properly increasing the intake of these foods every day will help It can meet the human body’s demand for vitamin B2, and no additional supplements are needed. More importantly, vitamin B2 is a drug, and drugs have side effects. Long-term use of Vitamin B2 Powder may cause photophobia, blurred vision, decreased vision, and keratitis. Therefore, it is not recommended for healthy people to take vitamin B2 for a long time, and some patients with digestive system diseases such as peptic ulcer and inflammatory bowel disease have difficulty in food absorption, as well as children, the elderly, pregnancy and lactation. Women and other special groups have an increased demand for Vitamin B2 Powder, and these groups are at increased risk of vitamin B2 deficiency. Vitamin B2 Powder can be supplemented under the guidance of a doctor.

Usage Limits:

GB14880-94: Cereals and their products, beverages, milk and milk beverages, beverages 3-5 mg/kg; infant food 4-8 mg/kg; salt 100-150 mg/kg. GB2760–2002 (mg/kg): 1 to 2 of prepared wine; 10 to 17 of nutritional solid beverages; 7.5 to 17.5 of ready-to-eat breakfast cereals; 1.0 to 7.0 of jelly; 10 to 22 of cocoa powder and other flavored nutritional solid beverages ( Corresponding nutritious milk beverages shall reduce the usage amount according to the dilution ratio); solid beverages 10-13 are used for nutritionally fortified salts (limited to areas with severe riboflavin deficiency); gum-based candies 16-33; milk-containing solid beverages 9-16.5; Soy milk powder, soy flour, 6 to 15; soy milk, soy milk, 1 to 3. FAO/WHO (1988): Synthetic products are limited to pigments. FAO/WHO (1984): salted cucumber, 300mg/kg (used alone or in combination with other pigments); meat, soup, soup, 200mg/kg (instant food); cold drink 50mg/kg (final product, total pigment 300mg) /kg); processed cheese, etc. according to GMP. FDA, §73.450, 2000: Limited to GMP as a pigment.

The Importance of Vitamin B2 Powder to The Human Body

Assist the normal metabolism of carbohydrates (carbohydrates), fat and protein, especially for fat metabolism, reduce fat accumulation and avoid vascular sclerosis and other effects.

Important nutrients for growth and development.

Maintain skin health and promote skin, hair and nail growth.

Maintain the repairing effect of mucous membranes and avoid inflammation of the mouth, tongue and lips.

Helps eye health and reduces eye fatigue.

It is related to the oxidative reaction and antioxidant mechanism in cells, and maintains normal cell function.

It is related to the absorption of iron and affects the production of red blood cells.

Assists in the metabolism of vitamin B6.

Assist in the manufacture of antibodies.

Vitamin B2 is water-soluble, and the excess part can be excreted from the body through the urine. Unless deliberately ingested in large quantities, it is not easy to cause excess problems. Generally speaking, most of the problems with vitamin B2 are caused by insufficient intake:

It will affect the regeneration of skin cells, which can easily cause seborrheic dermatitis, obvious hair loss, and even baldness.

It will affect the repair of normal mucosal cells, easily cause conjunctivitis, angular stomatitis, glossitis, and also prone to sore throat, throat and oral mucosal edema.

The lack of eyes can be more sensitive, photophobia, sore eyes, blurred vision, itching and tearing, and corneal hyperemia.

Fatigue and fatigue easily.

Severe deficiency of vitamin B2 will also affect the metabolism of vitamin B6.

If there is too much vitamin B2, basically the common problem is that the urine is yellowish in color.

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


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.


Do you accept sample order?

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.



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.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


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.

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