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Merck

L2761

[des-Gly10, D-His(Bzl)6]-LH-RH ethylamide

≥97% (HPLC), powder

Synonym(s):

Histrelin

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About This Item

Empirical Formula (Hill Notation):
C66H86N18O12
CAS Number:
76712-82-8
Molecular Weight:
1323.50
NACRES:
NA.32
PubChem Substance ID:
24896325
UNSPSC Code:
12352209
MDL number:
MFCD00133494

Key Documents

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InChI

1S/C66H86N18O12/c1-4-70-64(95)55-17-11-25-84(55)65(96)48(16-10-24-71-66(67)68)76-58(89)49(26-38(2)3)77-62(93)53(30-43-34-83(37-74-43)33-40-12-6-5-7-13-40)81-59(90)50(27-39-18-20-44(86)21-19-39)78-63(94)54(35-85)82-60(91)51(28-41-31-72-46-15-9-8-14-45(41)46)79-61(92)52(29-42-32-69-36-73-42)80-57(88)47-22-23-56(87)75-47/h5-9,12-15,18-21,31-32,34,36-38,47-55,72,85-86H,4,10-11,16-17,22-30,33,35H2,1-3H3,(H,69,73)(H,70,95)(H,75,87)(H,76,89)(H,77,93)(H,78,94)(H,79,92)(H,80,88)(H,81,90)(H,82,91)(H4,67,68,71)

SMILES string

CCNC(=O)C1CCCN1C(=O)C(CCCNC(N)=N)NC(=O)C(CC(C)C)NC(=O)C(Cc2cn(Cc3ccccc3)cn2)NC(=O)C(Cc4ccc(O)cc4)NC(=O)C(CO)NC(=O)C(Cc5c[nH]c6ccccc56)NC(=O)C(Cc7cnc[nH]7)NC(=O)C8CCC(=O)N8

InChI key

HHXHVIJIIXKSOE-UHFFFAOYSA-N

assay

≥97% (HPLC)

form

powder

composition

Peptide content, ~70%

UniProt accession no.

P55248, P01148, P07490, P13562, P30968, P30969, Q01776

storage temp.

−20°C

Quality Level

200

Gene Information

human ... GNRH1(2796), GNRHR(2798)
mouse ... GNRH1(14714), GNRHR(14715)
rat ... GNRH1(25194), GNRHR(81668)

Application

[des-Gly10, D-His(Bzl)6]-LH-RH ethylamide has been used:
  • for inducing Batrachoseps gravid females to oviposit
  • for comparing the effect of LHRH (luteinizing hormone-releasing hormone) agonists and dopamine antagonists in Lithobates pipiens
  • for inducing oviposition in females of Taricha granulosa and Ensatina eschscoltzii
  • to induce spawning in Spea hammondii adults

Biochem/physiol Actions

Glp-His-Trp-Ser-Tyr-His(Bzl)-Leu-Arg-Pro-NHEt ([des-Gly10, D-His(Bzl)6]-LH-RH) is a GnRH (gonadotropin-releasing hormone) agonist, histerelin. GnRH (Glp-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2), which is also referred as LHRH (luteinizing hormone-releasing hormone) or gonadorelin, is crucial for mammalian reproduction and is released from hypothalamic neurons. It is responsible for the secretion of gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), from the pituitary glands. Mutations in GnRH are associated with normosmic congenital hypogonadotropic hypogonadism. Histerelin is used for the treatment of central precocious puberty in children. It inhibits actions of sex steroids on the male and female reproductive organs.

Features and Benefits

Has greater lipophilicity than other LH-RH agonists, but retains high water solubility

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H360

Hazard Classifications

Repr. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

L2761-.1MG: + L2761-BULK: + L2761-.5MG-PW: + L2761-PH: + L2761-.5MG: + L2761-1MG-PW: + L2761PROC: + L2761-VAR: + L2761-BULK-N: + L2761-PPG: + L2761-1MG:

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Certificates of Analysis (COA)

Lot/Batch Number
SLBZ7465
SLBS8365
SLBL5285V
SLBC7335V
071M8721V

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Inhibition of the action of sex steroids by gonadotropin-releasing hormone (GnRH) agonists: a new biological effect.
K Sundaram et al.
Life sciences, 28(1), 83-88 (1981-01-05)
K O Klein et al.
The Journal of clinical endocrinology and metabolism, 86(10), 4711-4716 (2001-10-16)
We report 98 children who have reached final adult height in a long-term trial of LHRH agonist treatment. These children were 5.3 +/- 2.1 yr old at the start of treatment and were treated with either deslorelin (4 microg/kg.d sc)
Talia Eldar-Geva et al.
European journal of endocrinology, 162(1), 177-181 (2009-10-13)
Medical castration with long-acting GnRH-agonist (GnRHa) is a well-established treatment for metastatic prostate cancer. Our aim was to explore the relationships between FSH, inhibin B, anti-Mullerian hormone (AMH), and testosterone during treatment with an implant releasing GnRHa. Analysis of hormone
Martina Weise et al.
The Journal of clinical endocrinology and metabolism, 89(1), 103-107 (2004-01-13)
In children with precocious puberty (PP), treatment with GnRH analogs (GnRHa) often decreases height velocity below normal. Based on previous animal studies, we hypothesized that this impaired growth is due to excessive advancement in growth plate senescence induced by the
Katherine A Lewis et al.
The Journal of pediatrics, 162(3), 562-565 (2012-10-09)
To investigate the use of random ultrasensitive (US) luteinizing hormone (LH) levels to monitor children being treated with a histrelin implant for central precocious puberty (CPP). This was a prospective, uncontrolled, observational study at a pediatric endocrinology tertiary center. Thirty-three
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