콘텐츠로 건너뛰기
Merck
모든 사진(1)

주요 문서

M8631

Sigma-Aldrich

Melanin

Synthetic

로그인조직 및 계약 가격 보기

크기 선택

100 MG
₩194,474
250 MG
₩334,950
1 G
₩1,149,386

₩194,474

구입 가능 여부는 고객센터에 문의하십시오.
벌크 견적 요청
모든 사진(1)

크기 선택

보기 변경
100 MG
₩194,474
250 MG
₩334,950
1 G
₩1,149,386

About This Item

CAS Number:
8049-97-6
EC Number:
232-473-6
MDL number:
MFCD00131581
UNSPSC 코드:
12352204
NACRES:
NA.83

₩194,474

구입 가능 여부는 고객센터에 문의하십시오.
벌크 견적 요청

양식

powder

저장 온도

−20°C

SMILES string

[nH]1c2c3c(c4c5c([nH]c4)c([c]([c](c5c3c1)=O)=O)C)[c]([c](c2C)=O)=O

InChI

1S/C18H10N2O4/c1-5-13-9-7(3-19-13)12-10-8(11(9)17(23)15(5)21)4-20-14(10)6(2)16(22)18(12)24/h3-4,19-20H,1-2H3

InChI key

XUMBMVFBXHLACL-UHFFFAOYSA-N

유사한 제품을 찾으십니까? 방문 제품 비교 안내

일반 설명

Melanin is a vital pigment present on the surface structures of vertebrates,[1] which contribute to skin color.[2] It has three forms such as, eumelanin, pheomelanin and neuromelanin.[2] Melanin has cation chelating and redox properties. It is a potent absorbent of light. Melanin functions as a chemoprotective and photoprotective pigment. Mutations in this gene are associated with oculocutaneous albinism, vitiligo, piebaldism and Waardenburg syndrome.[1]

애플리케이션

Melanin has been used:
  • in spectrophotometry[3]
  • to study its effect on reverse transcription polymerase chain reaction (RT-PCR) inhibition and effect of BSA (bovine serum albumin) in overcoming the inhibition[4]
  • as an absorber for skin layer in near-infrared tissue spectra[5]
  • Raman spectroscopy[6]

제조 메모

Prepared by oxidation of tyrosine with hydrogen peroxide.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Eyeshields, Gloves, type N95 (US)

가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number
BCCL8556
BCCK2954
BCCK7608
BCCH4437
BCCF0394

적합한 버전을 찾을 수 없으신가요?

특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

COA 검색

이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

이미 열람한 고객

Slide 1 of 3

1 of 3

Tyrosinase from mushroom lyophilized powder, ≥1000 unit/mg solid

Sigma-Aldrich

T3824

Tyrosinase from mushroom

1,8-Dihydroxynaphthalene 95%

Sigma-Aldrich

740683

1,8-Dihydroxynaphthalene

Terrein from Aspergillus terreus, ≥98% (HPLC)

Sigma-Aldrich

T5705

Terrein

Fengmei Zou et al.
Biomedical optics express, 1(3), 748-761 (2011-01-25)
An accurate SO(2) prediction method for using broadband continuous-wave diffuse reflectance near infrared (NIR) spectroscopy is proposed. The method fitted the NIR spectra to a Taylor expansion attenuation model, and used the simulated annealing method to initialize the nonlinear least
Justyna M Drewnowska et al.
PloS one, 10(4), e0125428-e0125428 (2015-04-25)
Although melanin is known for protecting living organisms from harmful physical and chemical factors, its synthesis is rarely observed among endospore-forming Bacillus cereus sensu lato. Here, for the first time, we reported that psychrotolerant Bacillus weihenstephanensis from Northeastern Poland can
Melanin
Riley PA
The International Journal of Biochemistry & Cell Biology, 29(11), 1235-1239 (1997)
Bovine serum albumin reverses inhibition of RT-PCR by melanin
Giambernardi TA, et al.
Biotechniques, 25(4), 564-566 (1998)
Constant rate of steady-state self-antigen trafficking from skin to regional lymph nodes
Yoshino M, et al.
International Immunology, 18(11), 1541-1548 (2006)
모든 관련된 서류 보기

질문

1–4 / 4 질문  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 답변

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      도움이 되었습니까?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 답변

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      도움이 되었습니까?

  3. Can this product be dissolved in water?

    1 답변

    1. Product M8631 is not tested for solubility in water. The solubility is tested in 1N NH4OH at 20 mg/ml.

      도움이 되었습니까?

  4. We have used this melanin product. Is it known whether it is in oxidized form? Any information about the exact chemical structure ?

    1 답변

    1. This synthetic melanin product was prepared by oxidation of tyrosine with hydrogen peroxide.

      도움이 되었습니까?

후기

평점 값 없음

활성 필터

자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..

고객지원팀으로 연락바랍니다.