EPIBRASSINOLIDE

PRODUCT IDENTIFICATION
CAS NO 72962-43-7, 78821-43-9

EPIBRASSINOLIDE

EINECS NO.

 

FORMULA C28H48O6
MOL WT. 480.68

H.S. CODE

 2937.29.9090

TOXICITY

  
SYNONYMS Brassinolide; 24-Epibrassinolide;
22R,23R,24R-2a,3a,22,23-Tetrahydroxy-B-homo-7-oxa-5alpha-ergostan-6-one; (22R,23R,24S)-2alpha,3alpha,22,23-tetrahydroxy-24-methyl-B-homo-7-oxa-5αlpha -cholestan-6-one; 2alpha,3alpha,22alpha,23alpha-Tetrahydroxy-24alpha-methyl-B- homo-7-oxa-5alpha- cholestan-6-one;
SMILES

C1(=O)OC[C@@H]2[C@@H]([C@@]3([C@@H]1C[C@@H]([C @@H] (C3)O)O)C)CC[C@]1([C@H]2CC[C@@H]1[C@H](C) [C@H]([ C@@H] ([C@H](C(C)C)C)O)O)C

CLASSIFICATION

Plant growth regulator

EXTRA NOTES

  

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white crystalline powder
MELTING POINT 254 - 255 C
BOILING POINT

 

SPECIFIC GRAVITY

 

SOLUBILITY IN WATER  

SOLVENT SOLUBILITY

  
pH  
VAPOR DENSITY

 

REFRACTIVE INDEX

 

AUTOIGNITION

 

NFPA RATINGS  
FLASH POINT

 

STABILITY

Stable under ordinary conditions.

GENERAL DESCRIPTION & APPLICATIONS
Traditionally, there are five major plant hormone classes; Auxins, Cytokinins, Gibberellins, Ethylene, and Abscisic acid. But more compounds such as Brassinosteroids,jasmonates, salicylates, and polyamines are considered as majors recently. Though each plant hormone evokes many different specific biochemical, physiological, or morphological responses, the effects of different hormones overlap and may be stimulatory or inhibitory to regulate plant development and growth. Brassinosteroids, polyoxygenated steroid structure compounds, show pronounced plant growth regulatory activity. The the highest levels are found in mature cells for enough sugar and oxygen for both themselves and for transportation to other partsany dependent cells. The presence of  the oxygenated groups in the ring A, keto function group in ring B, side chain variations, and steroisomeric structure provide specific characteristics of each brassinosteroids. Brassinosteroid analogues have structural similarity with natural brassinosteroids and brassinolide activity.

 

Some main commecial brassinosteroids are;

  • Epicastasterone [ (22R,23R)-2alpha,3alpha,22,23-Tetrahydroxy-5alpha-ergostan-6-one]
  • 3,24-Diepicastasterone [(22R,23R,24R)-2alpha,3beta,22,23-Tetrahydroxy-24-methyl-5alpha-cholestane-6-one]
  • Epibrassinolide [ (22R,23R)-2alpha,3alpha,22,23-Tetrahydroxy-7-oxa-B-homo-5alpha-ergostan-6-one] 78821-43-9; 72962-43-7
  • 22S,23S-Epibrassinolide [(22S,23S)-2alpha,3alpha,22,23-Tetrahydroxy-7-oxa-B-homo-5alpha-ergostan-6-one]
  • 22S,23S-Epicastasterone [(22S,23S)-2alpha,3alpha,22,23-Tetrahydroxy-5alpha-ergostan-6-one]
  • 22S,23S-Homocastasterone [(22S,23S)-2alpha,3alpha,22,23-Tetrahydroxy-5alpha-stigmastan-6-one]
  • 22S,23S-Homobrassinolide [ (22S,23S)-2alpha,3alpha,22,23-Tetrahydroxy-7-oxa-B-homo-5alpha-stigmastan-6-one] 110369-52-3
  • Homocastasterone [ (22S,23S)-2alpha,3alpha,22,23-Tetrahydroxy-6-oxa-5alpha-stigmastan-6-one]
  • Homobrassinolide [ (22R,23R)-2alpha,3alpha,22,23-Tetrahydroxy-7-oxa-B-homo-5alpha-stigmastan-6-one] 74174-44-0
  • Dolichosterone [(22R,23R)-2alpha3alpha,22,23-Tetrahydroxy-5alpha-ergost-24(28)-en-6-one]
  • 6-Deoxodolichosterone [(22R,23R)-2alpha3alpha,22,23-Tetrahydroxy-5alpha-ergost-24(28)-ene]
  • 2-Epi-25-methyldolichosterone [(22R,23R)-2beta,3alpha,22,23-Tetrahydroxy-25-methyl-5alpha-ergost-24(28)-en-6-one]
  • 2,3-Diepi-25-methyldolichosterone [(22R,23R)-2beta,3beta,22,23-Tetrahydroxy-25-methyl-5alpha-ergost-24(28)-en-6-one]
  • 2-Deoxy-25-methyldolichosterone [(22R,23R)-3alpha,22,23-Trihydroxy-25-methyl-5a-ergost-24(28)-en-6-one]
  • 3-Epi-2-deoxy-25-methyldolichosterone [(22R,23R)-3beta,22,23-Trihydroxy-25-methyl-5alpha-ergost-24(28)-en-6-one]
  • 6-Deoxo-25-methyldolichosterone [(22R,23R)- 2alpha,3alpha,22,23-Tetrahydroxy-25-methyl-5alpha-ergost-24(28)-en-6-one]
  • 28-Norbrassinolide [(22R,23R)- 2alpha,3alpha,22,23-Tetrahydroxy-B-homo-7-oxa-5alpha-cholestan-6-one]
  • 28-Norcastasterone [(22R,23R)-2alpha,3alpha,22,23-Tetrahydroxy-5alpha-cholestan-6-one]
  • 6-Deoxo-28-norcastasterone [(22R,23R)- 2alpha,3alpha,22,23-Tetrahydroxy-5alpha-cholestane]
SALES SPECIFICATION

APPEARANCE

 white crystalline powder

PURITY

90.0% min
MELTING POINT 254 -256 C
TRANSPORTATION
PACKING

 

HAZARD CLASS  
UN NO.  
OTHER INFORMATION

Hazard Symbols: , Risk Phrases: , Safety Phrase: 22-24/25

GENERAL DESCRIPTION OF PLANT HORMONE
Auxin is one of five (or more) major plant hormones (Auxins, Cytokinins, Gibberellins, Ethylene and Abscisic acid) which affect numerous plant growth processes functions including cell division and elongation, autumnal loss of leaves, and the formation of buds, roots, flowers, and fruit. Auxin action is inhibited by light which is an important role of the growth of stems toward light (phototropism), against the force of gravity (geotropism) and positively hydrotropic (moisture-seeking). The cells exposed to light don't grow as quickly as those on the shaded side, and thus the plant grows toward the light source. Auxins usually have a ring system with at least one double bond and attached by a side-chain that terminates in a carboxyl group. Indole acetic acid is the exact structure of Auxin activity. Parent compounds of auxin action are;
  • Auxins
    • 4-Chlorophenoxyacetic acid (CAS RN: 122-88-3)
    • (2,4-Dichlorophenoxy)acetic acid (CAS RN: 94-75-7)
    • 4-(2,4-Dichlorophenoxy)butyric acid (CAS RN: 94-82-6)
    • Tris[2-(2,4-Dichlorophenoxy)ethyl] phosphite (CAS RN: 94-84-8)
    • 2-(2,4-Dichlorophenoxy)propanoic acid (CAS RN: 120-36-5)
    • 2-(2,4,5-trichlorophenoxy)propanoic acid (CAS RN: 93-72-1)
    • Indole-3-acetic acid (CAS RN: 87-51-4)
    • Indole-3-butyric acid (CAS RN: 133-32-4)
    • 1-Naphthaleneacetamide (CAS RN: 86-86-2)
    • 1-Naphthaleneacetic acid (CAS RN: 86-87-3)
    • 1-Naphthol (CAS RN: 90-15-3)
    • Naphthoxy acetic acid (CAS RN: 120-23-0)
    • Naphthenic acid, inorganic salts (potassium, sodium)
    • (2,4,5-Trichlorophenoxy) Acetic acid (CAS RN: 93-76-5)
  • Antiauxins
    • Clofibric acid (CAS RN: 882-09-7)
    • 2,3,5-Triiodobenzoic acid (CAS RN: 88-82-4)

Cytokinin is a N6-substituted adenines acting as phytohormones  such as kinetin, zeatin, 6-isopentenyladenine, benzyl adenine. The principal functions are stimulate cell division in concert with auxin (cytokinesis) and influence the pathway of tissue differentiation (organogenesis). 6-Benzylaminopurine is the first generation synthetic cytokinin which elicits plant growth and development responses setting blossoms and stimulating fruit richness by stimulating cell division. Active cytokinin ingredients include:

  • Adenine (CAS RN: 73-24-5)
  • Adenine Hemisulfate salt (CAS RN: 321-30-2)
  • 6-Benzylaminopurine (CAS RN: 1214-39-7(base), 162714-86-5(HCl)
  • N-Benzyl-9-(2-tetrahydropyranyl)adenine (CAS RN: 2312-73-4)
  • N-(2-Chloro-4-pyridyl)-N'-phenylurea (CAS RN: 68157-60-8)
  • 6-(gamma,gamma-Dimethylallylamino)purine (CAS RN: 2365-40-4)
  • 1,3-Diphenylurea (CAS RN: 102-07-8)
  • Kinetin (CAS RN: 525-79-1 (base), 177966-68-6 (HCl)
  • 1-Phenyl-3-(1,2,3-thiadiazol-5-yl) Urea (CAS RN: 51707-55-2)
  • Zeatin (CAS RN: 13114-27-7)
  • trans-Zeatin (CAS RN: 1637-39-4 (base), 6025-81-6 (HCl))
  • trans-Zeatin riboside (CAS RN: 6025-53-2)

Other Plant Growth Regulators include:

  • Abscisic acid (CAS RN: 21293-29-8)
  • Ancymidol (CAS RN: 12771-68-5)
  • Chlorocholine chloride (CAS RN: 999-81-5)
  • Daminozide (CAS RN: 1596-84-5)
  • 3,6-Dichloro-o-anisic acid (CAS RN: 1918-00-9)
  • Gibberellic acid (CAS RN: 77-06-5)
  • Gibberellic acid Potassium salt (CAS RN: 125-67-7)
  • Gibberellin A4 (CAS RN: 468-44-0  ) and other gibberellins (more than 110 gibberellins are known)
  • Glyphosate (CAS RN: 1071-83-6)
  • Jasmonic acid (CAS RN: 3572-66-5)
  • 1,3,5-Trihydroxybenzene (CAS RN: 108-73-6)
PRICE INFORMATION