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Avermectin CAS No 71751-41-2

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  Post Date: Dec 23,2024
  Expiry Date: Dec 23,2025
  Detailed Description: Cas No. :71751-41-2 Payment Method: LC/TT
Product name: Avermectin
CAS No 71751-41-2
Appearance: White or yellowish-white crystalline powder

Application: Avermectin can control, repel and kill
nematode, hookworm, worm insect, biok and acarid in the
bodies of livestock and poulty. It is mainly used to treat
Domestic animal diseases of nematode, itch mite and
parasitic insect

Storage: Sealed tightly and stored away from light in a cool and dry place.
Place of origin: China.
Validity: 2 years
Packing: 1kg/foil bag, or 25kgs/carton drum

Specification
Test Items Standard Result
Description White to light yellow crystalline powder without visible exotic impurities Conforms
Identification IR Corresponds with that of standard
HPLC The retention time for B1a corresponds with that of standard preparation Qualified
Loss on drying ≤2.0 1.3
Melting point 157-162℃ 158.3℃
Acetone insolubles ≤0.2 0.04
pH 4.5-7.0 6.1
α (B1a/B1b) ≥4.0 14.7
Assay Bla+ Blb≥95.0 97.6
Bla/(Bla+ Blb)≥90.0 95.5
Conclusion The results conform with GB19336-2003 standard


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  CAS Registry Number:

71751-41-2
  Synonyms: ;abamectin B1a;Mixture of Avermectin B1a and Avermectin B1b;Affirm;Agri-Mek;Avid;Zephyr;(2aE,4E,5'S,6S,6'R,7S,8E,11R,13S,15S,17aR,20R,20aR,20bS)-20,20b-dihydroxy-5',6,8,19-tetramethyl-6'-[(1S)-1-methylpropyl]-17-oxo-5',6,6',10,11,14,15,17,17a,20,20a,20b-dodecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacyclooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-alpha-L-arabino-hexopyranosyl)-3-O-methyl-alpha-L-arabino-hexopyranoside - (2aE,4E,5'S,6S,6'R,7S,8E,11R,13S,15S,17aR,20R,20aR,20bS)-20,20b-dihydroxy-5',6,8,19-tetramethyl-6'-(1-methylethyl)-17-oxo-5',6,6',10,11,14,15,17,17a,20,20a,20b-dodecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacyclooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-alpha-L-arabino-hexopyranosyl)-3-O-methyl-alpha-L-arabino-hexopyranoside (1:1);(2aE,4E,5'S,6S,6'R,7S,8E,11R,13S,15S,17aR,20R,20aR,20bS)-6'-[(2S)-butan-2-yl]-20,20b-dihydroxy-5',6,8,19-tetramethyl-17-oxo-5',6,6',10,11,14,15,17,17a,20,20a,20b-dodecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacyclooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-alpha-L-arabino-hexopyranosyl)-3-O-methyl-alpha-L-arabino-hexopyranoside;(5'S,6S,6'R,7S,11R,13S,15S,17aR,20R,20aR,20bS)-20,20b-dihydroxy-5',6,8,19-tetramethyl-6'-[(1S)-1-methylpropyl]-17-oxo-5',6,6',10,11,14,15,17,17a,20,20a,20b-dodecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacyclooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-α-L-arabino-hexopyranosyl)-3-O-methyl-α-L-arabino-hexopyranoside;Acimic;Abacide;Abamectine;Dynamec;Dynamec(R);Bermectine;Avermectin B;Avermectin B1;avermectin B1b;avermectin B1a;(10E,14E,16E,22Z)-(1R,4S,5'S,6S,6'R,8R,12S,13S,20R,21R,24S)-6'-[(S)-sec-butyl]-21,24-dihydroxy-5',11,13,22-tetramethyl-2-oxo-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6-spiro-2'-(5',6'-dihydro-2'H-pyran)-12-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-a-L-arabino-hexopyranosyl)-3-O-methyl-a-L-arabino-hexopyranoside (i) mixture with (10E,14E,16E,22Z)-(1R,4S,5'S,6S,6'R,8R,12S,13S,20R,21R,24S)-21,24-dihydroxy-6'-isopropyl-5',11,13,22-tetramethyl-2-oxo-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6-spiro-2'-(5',6'-dihydro-2'H-pyran)-12-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-a-L-arabino-hexopyranosyl)-3-O-methyl-a-L-arabino-hexopyranoside (ii) (4:1);5-O-demethylavermectin A1a (i) mixture with 5-O-demethyl-25-de(1-methylpropyl)-25-(1-methylethyl)avermectin A1a (ii);AGRI-MEK(R);Avermectin;Avermectins;
  Molecular Formula: C48H72O14
  Molecular Weight: 873.0769
  Molecular Structure: 71751-41-2 Abamectin

  Company: Taizhou Tianrui Chempharm Co., Ltd.     [ China ]          
  Contact: Jack
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