Asam laktat: Perbedaan antara revisi

Asam laktat
Skeletal formula of L-lactic acid
Nama
	Nama IUPAC (preferensi) 2-Hydroxypropanoic acid
	Nama lain Lactic acid; Milk acid
Penanda
Nomor CAS	50-21-5 ; 79-33-4 (L) ; 10326-41-7 (D) ;
Model 3D (JSmol)	Gambar interaktif;
3DMet	{{{3DMet}}}
ChEBI	CHEBI:422 ;
ChEMBL	ChEMBL330546 ;
ChemSpider	96860 ;
Nomor EC
IUPHAR/BPS	2932;
Nomor RTECS	{{{value}}}
UNII	33X04XA5AT ;
CompTox Dashboard (EPA)	DTXSID7023192 ;
	InChI InChI=1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)/t2-/m0/s1 Key: JVTAAEKCZFNVCJ-REOHCLBHSA-N ;
	SMILES CC(O)C(=O)O;
Sifat
Rumus kimia	C3H6O3
Massa molar	90,08 g·mol−1
Titik lebur	53°C
Titik didih	122 °C (252 °F; 395 K) @ 15 mmHg
Keasaman (pKa)	3.86, 15.1
Termokimia
Entalpi; pembakaran; standar ΔcHo298	1361.9 kJ/mol, 325.5 kcal/mol, 15.1 kJ/g, 3.61 kcal/g
Farmakologi
Kode ATC	G01AD01; QP53AG02
Bahaya
Piktogram GHS
Pernyataan bahaya GHS	H315, H318
Langkah perlindungan GHS	P280, P305+351+338
Senyawa terkait
Anion lain	laktat
	Kecuali dinyatakan lain, data di atas berlaku pada suhu dan tekanan standar (25 °C [77 °F], 100 kPa).
	verifikasi (apa ini ?)
	Referensi

Jelajahi riwayat secara interaktif

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Revisi per 12 Desember 2018 01.46

Asam laktat (Nama IUPAC: asam 2-hidroksipropanoat (CH3-CHOH-COOH), dikenal juga sebagai asam susu) adalah senyawa kimia penting dalam beberapa proses biokimia. Seorang ahli kimia Swedia, Carl Wilhelm Scheele, pertama kali mengisolasinya pada tahun 1780. Secara struktur, ia adalah asam karboksilat dengan satu gugus hidroksil yang menempel pada gugus karboksil. Dalam air, ia terlarut lemah dan melepas proton (H⁺), membentuk ion laktat. Asam ini juga larut dalam alkohol dan bersifat menyerap air (higroskopik).

Asam ini memiliki simetri cermin (kiralitas), dengan dua isomer: asam L-(+)-laktat atau asam (S)-laktat dan, cerminannya, iasam D-(-)-laktat atau asam (R)-laktat. Hanya isomer yang pertama (S) aktif secara biologi.

Pranala luar

Corn Plastic to the Rescue
Lactic Acid: Information and Resources
Lactic Acid Is Not Muscles' Foe, It's Fuel
Fitzgerald M (January 26, 2010). "The Lactic Acid Myths". Competitor Running.

^ ^a ^b Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. hlm. 748. doi:10.1039/9781849733069-00648. ISBN 978-0-85404-182-4.
^ Dawson RM, et al. (1959). Data for Biochemical Research. Oxford: Clarendon Press.
^ Silva AM, Kong X, Hider RC (October 2009). "Determination of the pKa value of the hydroxyl group in the alpha-hydroxycarboxylates citrate, malate and lactate by 13C NMR: implications for metal coordination in biological systems". Biometals. 22 (5): 771–8. doi:10.1007/s10534-009-9224-5. PMID 19288211.
^ ^a ^b ^c Sigma-Aldrich Co., DL-Lactic acid.

[iupac2013-1] Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. hlm. 748. doi:10.1039/9781849733069-00648. ISBN 978-0-85404-182-4.

[2] Dawson RM, et al. (1959). Data for Biochemical Research. Oxford: Clarendon Press.

[3] Silva AM, Kong X, Hider RC (October 2009). "Determination of the pKa value of the hydroxyl group in the alpha-hydroxycarboxylates citrate, malate and lactate by 13C NMR: implications for metal coordination in biological systems". Biometals. 22 (5): 771–8. doi:10.1007/s10534-009-9224-5. PMID 19288211.

[sigma-4] Sigma-Aldrich Co., DL-Lactic acid.

[1]

[2]

[3]

[4]

@@ Baris 1: / Baris 1: @@
 {{chembox
+| Verifiedfields = changed
+| Watchedfields = changed
+| verifiedrevid = 477002503
 | Name = Asam laktat
+| ImageFile =
-| ImageFileL1 = Lactic-acid-skeletal.svg
+| ImageFileL1 = 7 Milchsäure.svg
-| ImageSizeL1 = 120px
+| ImageSizeL1 = 110
-| ImageNameL1 = Skeletal formula of lactic acid
+| ImageNameL1 = Skeletal formula of <small>L</small>-lactic acid
-| ImageFileR1 = Lactic-acid-3D-balls.png
-| ImageSizeR1 = 120px
+| ImageCaptionL1 =
+| ImageFileR1 = File:L-Lactic acid molecule spacefill.png
-| ImageNameR1 = Ball-and-stick model of lactic acid
+| ImageSizeR1 = 130
-| IUPACName = 2-hydroxypropanoic acid
+| ImageNameR1 =
-''Note:'' The S enantiomer is depicted in each of the structural models included above.
+| ImageCaption2 = <small>rac</small>-Lactic acid
+| PIN = 2-Hydroxypropanoic acid<ref name=iupac2013>{{cite book | title =  Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book) | publisher = [[Royal Society of Chemistry|The Royal Society of Chemistry]] | date = 2014 | location = Cambridge | page = 748 | doi = 10.1039/9781849733069-00648 | isbn = 978-0-85404-182-4}}</ref>
+| SystematicName =
+| OtherNames = Lactic acid<ref name=iupac2013 /><br />Milk acid
 | Section1 = {{Chembox Identifiers
+| IUPHAR_ligand = 2932
-| CASNo= 50-21-5
+| CASNo_Ref = {{cascite|correct|CAS}}
-| CASOther = <br /><small>D</small>/<small>L</small>: [50-21-5] <br /><small>L</small>: [79-33-4]<br /><small>D</small>: [10326-41-7]
+| CASNo = 50-21-5
+| CASNo1_Ref = {{cascite|correct|CAS}}
+| CASNo1 = 79-33-4
+| ChEMBL_Ref = {{ebicite|correct|EBI}}
+| ChEMBL = 330546
+| CASNo1_Comment = (<small>L</small>)
+| CASNo2_Ref = {{cascite|correct|CAS}}
+| CASNo2 = 10326-41-7
+| CASNo2_Comment = (<small>D</small>)
+| UNII_Ref = {{fdacite|changed|FDA}}
+| UNII = 33X04XA5AT
+| ChEBI_Ref = {{ebicite|correct|EBI}}
+| ChEBI = 422
+| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
+| StdInChI = 1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)/t2-/m0/s1
+| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
+| StdInChIKey = JVTAAEKCZFNVCJ-REOHCLBHSA-N
+| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
 | ChemSpiderID = 96860
 | SMILES = CC(O)C(=O)O
+}}
+| Section2 = {{Chembox Properties
+| C=3 | H=6 | O=3
+| MeltingPt =53°C
+| BoilingPtC = 122
+| BoilingPt_notes = @ 15 mmHg
+| pKa = 3.86,<ref>{{cite book| vauthors = Dawson RM |displayauthors=etal|title=Data for Biochemical Research|location=Oxford|publisher=Clarendon Press|date=1959}}</ref> 15.1<ref>{{cite journal | vauthors = Silva AM, Kong X, Hider RC | title = Determination of the pKa value of the hydroxyl group in the alpha-hydroxycarboxylates citrate, malate and lactate by 13C NMR: implications for metal coordination in biological systems | journal = Biometals | volume = 22 | issue = 5 | pages = 771–8 | date = October 2009 | pmid = 19288211 | doi = 10.1007/s10534-009-9224-5 }}</ref>
+ }}
+| Section3 =
+| Section4 = {{Chembox Thermochemistry| DeltaHc = 1361.9&nbsp;kJ/mol, 325.5&nbsp;kcal/mol, 15.1&nbsp;kJ/g, 3.61&nbsp;kcal/g}}
+| Section8 = {{Chembox Related
+| OtherAnions = lactate
+| OtherFunction_label = [[carboxylic acid]]s
+| OtherFunction = [[acetic acid]]<br />[[glycolic acid]]<br />[[propionic acid]]<br />[[3-hydroxypropanoic acid]]<br />[[malonic acid]]<br />[[butyric acid]]<br />[[hydroxybutyric acid]]
+| OtherCompounds = [[1-propanol]]<br />[[2-propanol]]<br />[[propionaldehyde]]<br />[[acrolein]]<br />[[sodium lactate]]
+ }}
+| Section5 =
+| Section6 = {{Chembox Pharmacology
 | ATCCode_prefix = G01
 | ATCCode_suffix = AD01
 | ATC_Supplemental = {{ATCvet|P53|AG02}}
+}}
+| Section7 = {{Chembox Hazards
+| GHSPictograms = {{GHSp|GHS05}}<ref name="sigma">{{Sigma-Aldrich|sial|id=69785|name=DL-Lactic acid|access-date=20 July 2013}}</ref>
+| HPhrases = {{H-phrases|315|318}}<ref name="sigma" />
+| PPhrases = {{P-phrases|280|305+351+338}}<ref name="sigma" />
  }}
-| Section2 = {{Chembox Properties
+| Section8 = {{Chembox Related
-| Formula = C<sub>3</sub>H<sub>6</sub>O<sub>3</sub>
-| MolarMass = 90.08 g/mol
-| MeltingPt =<small>L</small>: 53&nbsp;°C<br /><small>D</small>: 53&nbsp;°C<br /><small>D</small>/<small>L</small>: 16.8&nbsp;°C
-| BoilingPt = 122&nbsp;°C @ 12 mmHg
-| pKa = 3.86 at 25&nbsp;°C
- }}
-| Section4 = {{Chembox Related
 | OtherAnions = laktat
 | Function = [[asam karboksilat]]
@@ Baris 36: / Baris 77: @@
 Asam ini memiliki simetri cermin ([[kiralitas]]), dengan dua [[isomer]]: asam <small>L</small>-(+)-laktat atau asam (''S'')-laktat dan, cerminannya, iasam <small>D</small>-(-)-laktat atau asam (''R'')-laktat. Hanya isomer yang pertama (S) aktif secara [[biologi]].
 == Pranala luar ==
 * [http://www.smithsonianmag.com/science-nature/10022381.html Corn Plastic to the Rescue]

Pengawasan otoritas
Umum	Integrated Authority File (Jerman)
Perpustakaan nasional	Prancis (data) Amerika Serikat Jepang Republik Ceko
Lain-lain	Microsoft Academic