Home > Name List By r > Riboflavin

CAS No 83-88-5 , Riboflavin

  • Name: Riboflavin
  • Synonyms: 7,8-Dimethyl-10-ribitylisoalloxazine; Vitamin B2; Vitamin B2 (Riboflavine); Riboflavine;Riboflavin; Vitamin B_2;Lactoflavine; Vitamin B2 Feed Grade; Lactoflavine; Riboflavin Vitamin B2; E 101; Riboflavin (1.07609);
  • CAS Registry Number:
  • Transport: 25kgs
  • Melting Point: 290 ºC
  • Density: 1.65
  • Refractive index: -135 ° (C=0.5, JP Method)
  • Alpha: -135 º (C=5, 0.05 M NAOH)
  • Water Solubility: 0.07 G/L (20 ºC)
  • Safety Statements: S24/25
  • HS Code: 29362300
  • EINECS: 201-507-1
  • Molecular Weight: 376.37
  • InChI: InChI=1/C17H20N4O6/c1-7-3-9-10(4-8(7)2)21(5-11(23)14(25)12(24)6-22)15-13(18-9)16(26)20-17(27)19-15/h3-4,11-12,14,22-25H,5-6H2,1-2H3,(H,20,26,27)/t11-,12+,14-/m1/s1
  • Risk Statements: S24/25
  • Molecular Formula: C17H20N4O6
  • Molecular Structure:CAS No:83-88-5 Riboflavin
Search by region :

Select to

83-88-5 Vitamin B2 (Riboflavin) (13C4, 99%; 15N2, 98%) Chem Purity >97%

  • Creative Proteomics provides a full range of drug development services, including Molecular Biology, Biochemistry, Systems Biology, Organic Chemistry, Genomics, Bioinformatics, Structural Biology, Preclinical and Clinical studies. Please contact us t...
  • United States Creative Proteomics [Manufacturer, Trading Company]
  • Tel: 1-631-6197922
  • Fax: 1-631-6147828
  • Address: 45-1 Ramsey Road, Shirley New York,New YorkUnited States
Contact Supplier

83-88-5 Riboflavin

83-88-5 Riboflavin

  • stimulate growth and cell regeneration; the skin, nails, hair, normal growth; to help eliminate the mouth, lips, tongue inflammation; to enhance visual acuity and reduce eye fatigue; the interaction with other substances to help the carbohydrates, fa...
  • China Zhengzhou Friend Biological Engineering Co., Ltd [Manufacturer, Trading Company, Agent]
  • Tel: 86-187-03633064
  • Fax: --
  • Address: National Science Park Zhengzhou,HenanChina
Contact Supplier

83-88-5 Vitamin B2

  • Vitamin B2, CAS# 83-88-5, is a type of vitamin also know as Riboflavin, available as YELLOW TO ORANGER-YELLOW PARTICLE. Vitamin B2 is widely used as nutrition supplements as it is required for a wide variety of cellular processes. It is widely accept...
  • Min. Order: 200
  • FOB Price: USDfalse - false /
  • China Hubei A&S Trade Co.,Ltd. [Trading Company, Buying Office]
  • Tel: 86-728-3494577
  • Address: ROOM201,Guanggu Office Building,Mianjie Street, Xiantao,HubeiChina
Contact Supplier

83-88-5 Vitamin B2

  • duosue at chembj dot com skype: gina.yctech whats-----app ID: +8618872220799 wechat ID: hq030818 hi,dear friend welcome to our online shop if you want buy high purity pharm raws with competive price and safe delivery Congratulations because you get t...
  • Min. Order: 500
  • FOB Price: USDfalse - false /
  • China Wuhan Yuangang Teconology Corp. [Manufacturer]
  • Tel: 86-027-50756153
  • Fax: --
  • Address: Duosue At Chembj Dot Com Wuhan,HubeiChina
Contact Supplier

83-88-5 High quality Riboflavin(Vitamin B2)

  • High quality Riboflavin(Vitamin B2) Email:dahuamanager@whdhwy.com Skype:selenayang07 Whatsapp:+8615623826482 CAS No.: 83-88-5 Synonyms:Vitamin B2-Riboflavin(Vitamin B2)USP/BP/EP;VB2 (Riboflavin);Beflavine;San Yellow B;Vitaflavine;Vitamin G;Vitamin B2...
  • Min. Order: 10000
  • China Wuhan Dahua Weiye Pharmaceutical Co.,Ltd [Manufacturer]
  • Tel: 86-27-59848232
  • Fax: 86-27-59420980
  • Address: No. 45 Daijiangshan Jiangan District, Wuhan, Hubei, China Wuhan,HubeiChina
Contact Supplier

83-88-5 Vitamin B2

  • ProName: Vitamin B2 Product Details: Place of Origin: China Certification: ISO9001 Brand:YuanCheng Payment & Shipping Terms: Minimum Order Quantity:1kg Supply Ability:500kg/month Delivery Time:within 24 hours after payment Payment Terms:Western Union...
  • Min. Order: 25
  • FOB Price: USDfalse - false /
  • China Zhuzhou Yuancheng Hezhong Technology Development Co., Ltd. [Manufacturer]
  • Tel: 86-181-88938010
  • Address: No. 388, Huangshan Rd, Tianyuan District, Zhuzhou City, Hunan Province, P.R.China. Zhuzhou,HunanChina
Contact Supplier

83-88-5 Riboflavin

  • Riboflavin product Name: Riboflavin Synonyms: Lactoflavine; Vitamin B2 (Riboflavine); Riboflavin Vitamin B2; E 101; Riboflavin (1.07609); Riboflavine; Vitamin B2 Feed Grade; Vitamin B_2; Vitamin B2; Riboflavin (VB2); 1-deoxy-1-(7,8-dimethyl-2,4-dioxo...
  • Min. Order: 10000
  • FOB Price: USDfalse - true /
  • China Hubei Wuhan Yuancheng Saichuang Technology Co., Ltd. [Manufacturer]
  • Tel: 86-027-88322715
  • Fax: 86-027-88048077
  • Address: No.496,Zhongshan Road, Wuhan, Hubei, China Wuhan,HebeiChina
Contact Supplier

83-88-5 Riboflavin

Contact Supplier

83-88-5 3906.17-1G RIBOFLAVINE

  • Germany Campro Scientific GmbH [Manufacturer]
  • Tel: +49.(0)30.629.01.89.0 (Germany)/ +31.(0)318.529.437 (Netherlands)
  • Fax: +49.(0)30.629.01.89.89
    +31.(0)318.542.181
  • Address: Campro Scientific GmbH
    Postfach 36 20 65
    D-10972 Berlin
    Germany
    Tel. +49.(0)30.629.01.89.0
    Fax +49.(0)30.629.01.89.89
    info@campro.eu ,Germany
Contact Supplier

Select to

References of Riboflavin
Title: Riboflavin
CAS Registry Number: 83-88-5
Synonyms: Vitamin B2; lactoflavine; vitamin G; 7,8-dimethyl-10-(D-ribo-2,3,4,5-tetrahydroxypentyl)isoalloxazine; 7,8-dimethyl-10-ribitylisoalloxazine
Trademarks: Beflavin (Roche); Flavaxin (Winthrop)
Molecular Formula: C17H20N4O6
Molecular Weight: 376.36
Percent Composition: C 54.25%, H 5.36%, N 14.89%, O 25.51%
Literature References: Nutritional factor found in milk, eggs, malted barley, liver, kidney, heart, leafy vegetables. Richest natural source is yeast. Minute amounts present in all plant and animal cells. Occurs in the free form only in the retina of the eye, in whey, and in urine. Bioactive forms occurring in tissues and cells are riboflavin monophosphate and flavine-adenine dinucleotide, q.q.v. Syntheses: Karrer et al., Helv. Chim. Acta 18, 426, 522 (1935); Kuhn et al., Naturwissenschaften 23, 260 (1935); Howe, US 2807611 (1957 to Merck & Co.); F. Yoneda et al., J. Chem. Soc. Perkin Trans. 1 1978, 348. May also be produced by fermentation: Malzahn et al., US 2876169 (1959 to Grain Processing Corp.). Toxicity studies: Kuhn, Boulanger, Z. Physiol. Chem. 241, 233 (1936); K. Unna, J. G. Greslin, J. Pharmacol. Exp. Ther. 76, 75 (1942). Early reviews: Rosenberg in The Vitamins (New York, 1945); Sebrell, Harris, The Vitamins vol. III (Academic Press, New York, 1954) pp 299-402; Vogel-Knobloch, Chemie und Technik der Vitamine vol. II, part 1 (Enke, Stuttgart, 1955). Review of metabolism: Rivlin, N. Engl. J. Med. 283, 463 (1970). Review of extraction and assay methods: Pearson, The Vitamins vol. VII, P. Gy?rgy, W. N. Pearson, Eds. (Academic Press, New York, 2nd ed., 1967) pp 99-136. Comprehensive reviews: ibid. vol. V, pp 1-96 (1972); F. J. Al-Shammary et al., Anal. Profiles Drug Subs. 19, 429-476 (1990).
Properties: Fine orange-yellow needles from 2N acetic acid, alcohol, water, or pyridine. Dec at 278-282° (darkens at about 240°). Three different crystal forms having different solubilities in water: Dale, US 2603633; US 2797215. [a]D25 -112 to -122° (50 mg in 2 ml 0.1N alcoholic NaOH dil to 10 ml with water). Absorption max: 220-225, 266, 371, 444, 475 nm. One gram dissolves in from 3000 to about 15,000 ml of water, the variations in the soly being due to differences in the crystal structure. Soly in alcohol (27.5°): 0.0045 g/100 ml of abs ethanol. Slightly sol in cyclohexanol, amyl acetate, benzyl alcohol, phenol; very sol in dil alkalies (with decompn). Insol in ether, chloroform, acetone, benzene. pKa 10.2; pKb 1.7. pH of satd aq soln: ~6. Isoelectric pt: pH 6. Aq solns are yellow showing a green fluoresence with max at 565 nm. Sensitive to alkalies; stable to mineral acids in the dark. Visible or ultraviolet irradiation of alkaline solns causes the formation of lumiflavine, q.v., whereas irradiation of acid or neutral solns gives rise to the production of lumichrome, q.v., together with varying amounts of lumiflavine. LD50 in rats (g/kg): >10 orally, 5.0 s.c., 0.56 i.p. (Unna, Greslin).
pKa: pKa 10.2; pKb 1.7
Optical Rotation: [a]D25 -112 to -122° (50 mg in 2 ml 0.1N alcoholic NaOH dil to 10 ml with water)
Absorption maximum: Absorption max: 220-225, 266, 371, 444, 475 nm
Toxicity data: LD50 in rats (g/kg): >10 orally, 5.0 s.c., 0.56 i.p. (Unna, Greslin)
 
Derivative Type: 2¢,3¢,4¢,5¢-Tetrabutyrate
CAS Registry Number: 752-56-7
Trademarks: Bituvitan (Hishiyama); Eyekas (Showa Shinyaku); Hibon (Tokyo Tanabe); Lacflavin (Towa Yakuhin); Ribolact (Taiho); Wakaflavin L (Wakamoto); Viras (Mect)
Molecular Formula: C33H44N4O10
Molecular Weight: 656.72
Percent Composition: C 60.35%, H 6.75%, N 8.53%, O 24.36%
 
Therap-Cat: Vitamin (enzyme cofactor).
Therap-Cat-Vet: Vitamin (enzyme cofactor).
Keywords: Enzyme Cofactor; Vitamin/Vitamin Source; Vitamin B2.