Riboflavin
Also known as: Riboflavine, Vitamin B2, Vitamin G, Lactoflavin, Beflavin, Flavaxin, (-)-Riboflavin, E101
Riboflavin (CAS 83-88-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C17H20N4O6 and a molecular weight of 376.364 g/mol. Key properties include a melting point of 290 °C (dec.)(lit.), a boiling point of 715.6±70.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 386.6±35.7 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. It is listed by 1 supplier, from 1.24 to 3.50 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 83-88-5
- Jingsj CID
- J-1114938-7
- Molecular Formula
- C17H20N4O6
- Molecular Weight
- 376.364 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 98% 500g | ¥620.00 | $0.19 /gBest ¥1.24/g CNY | CN China MOQ 500g | |
In Stock | 98% 100g | ¥175.00 | $0.26 /g ¥1.75/g CNY | CN China MOQ 100g | |
In Stock | 98% 25g | ¥62.00 | $0.37 /g ¥2.48/g CNY | CN China MOQ 25g |
Physicochemical Properties
| Melting Point | 290 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 715.6±70.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 386.6±35.7 °C |
| Exact Mass | 376.138275 |
| PSA | 161.56000 |
| LogP | -2.01 |
| Vapor Pressure | 0.0±2.4 mmHg at 25°C |
| Refractive Index | 1.733 |
| Additional Property | 0.07 g/L (20 ºC) |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H370 — Causes damage to organs
Activity & Biological Data
| Additional Information | [1]. Long, Q., et al., Riboflavin biosynthetic and regulatory factors as potential novel anti-infective drug targets. Chem Biol Drug Des, 2010. 75(4): p. 339-47. [2]. Zempleni, J., J.R. Galloway, and D.B. McCormick, Pharmacokinetics of orally and intravenously administered riboflavin in healthy humans. Am J Clin Nutr, 1996. 63(1): p. 54-66. [3]. Bertollo, C.M., et al., Characterization of the antinociceptive and anti-inflammatory activities of riboflavin in different experimental models. Eur J Pharmacol, 2006. 547(1-3): p. 184-91. |
|---|
Customs & Trade Information
| HS Code | 2936230000 |
|---|---|
| Summary | 2936230000. unmixed vitaming b2 and deratives(whether or not dissolved in solvents). VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:4.0%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Riboflavin?
The CAS number of Riboflavin is 83-88-5.
What are the molecular formula and molecular weight of Riboflavin?
Riboflavin has molecular formula C17H20N4O6 and molecular weight 376.364 g/mol.
Which suppliers offer Riboflavin?
1 supplier(s) listed; reference unit price ¥1.24–3.50 /g.
Is Riboflavin hazardous?
Riboflavin has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.
What are the upstream and downstream products of Riboflavin?
For Riboflavin, Upstream Products: Barbituric acid, Isobutyl acetate, 5,5-Dichlorobarbituric acid; Downstream Products: Nicotinamide adenine dinucleotide, Riboflavin tetrabutyrate, Lumichrome.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Riboflavin (CAS 83-88-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1114938-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.